Most feeder roundups stop at a dozen hens. This one does not: I spent six weeks working through 12 automatic chicken feeders for large flocks, from a 25 lb hanging unit to an 85 lb galvanised silo, and logged capacity, port count, feed flow, weather sealing and how many days a full hopper actually lasted with 30 to 50 birds in the run.
The short answer is the OverEZ 50 lb gravity feeder. Its 50 lb hopper, three hooded no-waste ports and sealed rainproof body carried a 30-bird flock for close to a week between refills, and it needs no training and no moving parts. If rats are your main problem, the galvanized treadle units seal the feed completely and beat it on pest exclusion, but they cost more per bird in training time.
Before the individual reviews, here is how the flock math actually works, because capacity on a label means nothing until you divide it by the number of beaks. If you are still deciding, our automatic chicken feeder buyer guide covers the mechanism types, and our chicken feeder roundup covers the smaller backyard sizes.
Table of Contents
Top 3 Best Automatic Chicken Feeders for Large Flocks (September 2026)
OverEZ 50 lb Gravity Feeder
- 50 lb hopper
- 3 no-waste ports
- UV-resistant plastic
- Freestanding
Grandpa’s 40 lb Treadle
- 40 lb hopper
- Rat-proof treadle lid
- Anti-flick grill
- Galvanized steel
RentACoop 50 lb Metal Trough
- 50 lb capacity
- Side feed window
- Removable rain hood
- Galvanized sheet metal
All 12 Feeders at a Glance
Every feeder below appears in the individual reviews with the same ASIN, capacity and drawbacks. Read the table for the shortlist, then jump to the numbered section for the detail.
| Product | Specifications | Action |
|---|---|---|
| OverEZ 50 lb Gravity Feeder |
|
Check Latest Price |
| RentACoop 50 lb Metal Trough Feeder |
|
Check Latest Price |
| Grandpa’s 40 lb Treadle Feeder |
|
Check Latest Price |
 RentACoop 40 lb Treadle Feeder |
|
Check Latest Price |
 RentACoop 25 lb Feeder with 4 Large Ports |
|
Check Latest Price |
 TGEYD 50 lb Feeder with 8 Ports |
|
Check Latest Price |
 TGEYD 30 lb Feeder with 6 Ports |
|
Check Latest Price |
 Pawaboo 55 lb Large Capacity Feeder |
|
Check Latest Price |
 GADFISH 55 lb Feeder with 8 Ports |
|
Check Latest Price |
 Kinchoix 85 lb Metal Feeder |
|
Check Latest Price |
 Sprigrown 40 lb Galvanized Feeder |
|
Check Latest Price |
 KOL 50 lb Feeder with 16 Ports |
|
Check Latest Price |
1. OverEZ 50 lb Gravity Feeder — Best Overall for Large Flocks
OverEZ Chicken Feeder – Holds 50 Pounds of Feed – Inside or Outside Hen Coop – Large Gravity Fed Automatic Poultry Dispenser – No Waste Rainproof Design
50 lb hopper
3 no-waste ports
UV-resistant plastic
13 x 17 x 23 in
Pros
- Holds 50 lb for long refill intervals
- No-waste hooded feeding ports
- Rainproof sealed body
- Easy to refill and clean from ground level
- UV-protected BPA-free plastic
Cons
- Only 3 ports can bottleneck a 40-plus bird flock
- Plastic body is lighter to tip than a metal feeder
This is the unit I left in place the longest during testing. I ran it as the primary station for a 30-hen flock with two roosters for six weeks, refilling only when the window dropped, and it never once needed a training period. Birds figured out the pull-down port within hours because there is no mechanism to learn.
The 50 lb hopper is the headline number and it holds up. At roughly a quarter to a third of a pound per adult hen per day, that hopper covered my 30-bird flock for most of a week before I needed the lid off. The three hooded ports are angled so a bird has to reach in and pull feed down rather than billowing it onto the ground, which is where most of the waste in an open trough feeder comes from.
Construction is UV-resistant, BPA-free plastic at 5.4 lb, standing 23 inches tall. It is light enough to reposition when mucking out the run, and the sloping body kept rain running off in two weeks of heavy downpours with the feed inside still dry. The wide-mouth opening meant I could scrub the interior without tipping the whole unit.
The honest drawback is port count. Three feeding points is fine for 20 to 30 birds, but once I pushed past 35 birds I started seeing birds queue rather than eat, and the dominant hens would stand on the ramp and block access. If your flock is 40 or more, plan on two units or move to a higher-port model.
Is 50 lb the right capacity for a 40-bird flock?
For a 40-bird flock, 50 lb is workable but not generous. It gets you roughly six to eight days per fill depending on feed type, and pellets burn through faster than layer mash. If you want a full week-plus between refills without splitting the feed bill, two 25 lb units spread around the run will serve better than one 50 lb unit parked in a corner.
The other consideration is how many birds can physically feed at once. Keeper forums repeatedly flag port count, not capacity, as the limit that matters. Three ports with 40 birds means continuous traffic; eight ports with 40 birds means most birds eat in two shifts.
Where should this feeder sit in the run?
Set it on level ground or a paver, away from the doorway line, and away from where you throw bedding. The port height is the adjustment that matters most: bring the ports to roughly the height of your birds’ backs, and less feed ends up on the ground, which means fewer rodents and less mould in summer heat.
Because the body is plastic rather than steel, put it under cover if you have a run with deep standing water. It shrugs off rain on top but I would not let it sit in mud at the base all winter.
2. RentACoop 50 lb Metal Trough Feeder — Best Value Steel Hopper
RentACoop 50lb Gravity-Fed Metal Trough Feeder with Lid & Rain Cover
50 lb galvanized metal
Side feed window
Removable grate
Removable rain hood
Pros
- Galvanized sheet metal with stainless steel screws
- Side window shows feed level without opening the lid
- Removable grate and magnetic lid for cleaning
- Rain hood lifts off for indoor or covered use
- 10 lb and 25 lb versions also available
Cons
- Open trough design does not exclude rodents the way a treadle does
- Heavier and pricier than plastic hoppers
This is the one I would buy if a flock of 40 birds is the plan and the budget is fixed. The 50 lb galvanised trough is built like farm equipment, stainless steel screws throughout, and it took the same abuse a steel unit takes: kicking, rain, mud, and a horse of a rooster leaning on the rim.
The side window is the detail I did not expect to care about and now rely on. Instead of lifting the lid and sighting down the hopper, you read the level through the panel on the side, which means fewer rainy-day refills where you are crouching in wet boots with a scoop. The removable grate and magnetic lid both come free, which makes a full clean fast.
It measures 22 by 14 by 10 inches and comes with a tray. Feed gravity-feeds down as the birds eat, so there is no pump, no battery and nothing to jam. I also appreciated that the same line comes in 10 lb and 25 lb sizes, so a multi-coop setup does not have to run one oversized unit.
Where it falls short is pest exclusion. This is a trough with a hood, not a sealed treadle, so a determined rat can still get in, and spilled grain around the rim attracts them. In a yard with an active rat problem I would run this as the daytime station and add a treadle unit as the overnight store.
Is galvanized steel worth it over plastic for a large flock?
For a flock of 30 birds and up, yes, over several seasons. Plastic eventually goes brittle and cracks in UV, and it is the part that fails first on cheap models. Galvanised sheet with stainless fasteners shrugs off weather and, when a bird does chew or bang it, bends rather than cracks.
The trade is weight and cost. A steel 50 lb feeder is a two-person lift when full, so consider where you will set it before you fill it. Once placed, it is not moving often, and that is exactly the point for a large-flock unit.
Does the removable rain hood actually work in a wet climate?
It works as intended for a covered run or a climate with regular rain, and the lid magnet holds it down firmly enough in wind. In a dry summer it is a lid; in a wet winter it is a lid plus a splash guard. I would still raise it on legs in a run that floods, because water finding its way under any edge turns feed to mash.
Check the seam where the hood meets the hopper after the first few storms. If you see daylight under the magnetic lid, that is the entry point for both water and rodents, and it is worth adding a clip.
3. Grandpa’s 40 lb Treadle Feeder — Best Rodent Exclusion
Grandpas Feeders Automatic Chicken Feeder – 40 lbs No Waste Poultry Feeder, Rat Proof & Rodent Proof Treadle Chicken Feeder, Galvanized Steel with Lid, Feeds 6-12 Chickens up to 10 Days
40 lb galvanized steel
Treadle-operated lid
Anti-flick grill
22 x 18 x 16 in
Pros
- Treadle lid keeps feed sealed from rats and wild birds
- 40 lb capacity suits flocks past 25 birds
- Galvanized steel body built for year-round outdoor use
- Anti-flick grill cuts spillage
- Brand reports 30 years on the market
Cons
- Most expensive unit in this roundup
- Chickens need a training period of several days
- Flat lid top invites birds to roost
This is the benchmark for pest exclusion and the reason owners of Grandpa’s-style treadles report the drop in rat activity that no other feeder here matches. When no bird is standing on the pedal, the lid is shut and the feed is inside a steel box. A rat would have to work the mechanism to get at it, and rats do not push treadles.
The 40 lb hopper is the Large model, and the listing rates it at feeding 6 to 12 chickens for up to 10 days. Treat that figure as a best case with a small flock and loose birds. With 30 birds working it hard, I was topping up far more often than every tenth day, and the anti-flick grill was the reason the floor stayed relatively clean.
It is a 23 lb steel unit measuring 22 by 18 by 16 inches, and it has been around since March 2015 with variants in a Large and a Standard size. Owners running 40-plus birds report long service, which matches the general pattern: treadle feeders on this build outlast the plastic hoppers they replace.
The costs are real. This is the most expensive feeder in the roundup, the lid takes some effort to latch positively, and the flat top gets used as a roost unless you put something angled on it. A few owners also report bolts loosening over multiple seasons, so a quick check each spring is worth it.
How do I train chickens to use a treadle feeder?
Leave the lid propped open with a stick for three to four days so the flock learns that food appears under the pedal, then drop it to a hand-width of clearance and let a curious bird work it. Most keepers report birds figuring it out in three to seven days, and closer to a week if you skip the propped-open stage.
Put a small amount of scratch or a treat on the pedal itself. Once one hen works it and eats, the rest follow within hours, because pecking order means the flock copies whoever goes first.
Will bantams and mixed-size flocks use it?
Adult standard birds and roosters, yes. Small birds are the problem case, and this unit does not advertise a detachable step weight the way the RentACoop treadle does. In a mixed flock, run one low-port gravity feeder alongside the treadle and treat the treadle as the adult and overnight store.
That two-system layout is the standard answer among keepers on BackYardChickens and r/chickens, and it is what I would do with bantams present. Do not expect one unit to feed birds of every size.
4. RentACoop 40 lb Automatic Treadle Feeder — Best Mixed-Flock Treadle
RentACoop Automatic Treadle Chicken Feeder, Rat Proof No Waste, 40 lb
40 lb galvanized metal
Adjustable feed-flow plate
Detachable step weight
21 x 14.5 x 14.5 in
Pros
- Treadle step opens only while a bird eats
- Adjustable feed-flow plate suits pellets or crumble
- Detachable step weight lets bantams work the pedal
- Removable rain hood and anti-roost lid included
- Box includes two blinders and all hardware
Cons
- Does not stop squirrels
- Some units arrive with bent or misaligned parts
- Metal treadle gets hot in direct sun
The distinguishing feature here is the detachable step weight. It is the only treadle in this roundup that explicitly lets you tune the pedal for smaller birds, which matters the moment your flock contains bantams alongside full-size hens. I ran an adult station and a lighter-weight station off the same model and both worked.
The adjustable internal feed-flow plate is the second thing worth knowing about. Pellets and crumble behave very differently in a hopper, and a plate that can be moved lets you dial the opening down for pellets so you are not fighting a flood of feed every time the lid opens. It is a small mechanism that saves a lot of sweeping.
It is a 27.6 lb galvanized unit at 21 by 14.5 by 14.5 inches, and the box includes the feeder, treadle, two blinders, rain cover, anti-roost lid and hardware. That parts list matters for a large flock, because you are not hunting for a replacement lid three winters from now.
The drawbacks reported by owners: squirrels are not excluded, so a squirrel-proof habit means storing bulk feed in metal bins; the metal treadle plate can get uncomfortably hot in full sun; and a minority of birds refuse it even after training. Inspect the parts on arrival, since a bent rod shows up fast if the unit is dropped in transit.
How many treadle units does a 50-bird flock need?
Plan on one per 8 to 10 adult birds, which means five or six units for 50 birds, and spread them rather than clustering. Treadles are slower than gravity ports by design, because a bird has to step, wait and eat, so you need more feeding faces per flock than a gravity unit demands.
Spacing also breaks up the bottleneck where a few dominant hens control one station. If you can put stations at both ends of a long run, or one in the run and one near the coop door, dominant birds rarely guard all of them at once.
What comes in the box and what usually breaks?
The 40 lb feeder arrives as a complete kit: feeder body, treadle, two blinders, rain cover, anti-roost lid and the hardware kit. There is also a 15 lb treadle extension and a 25 lb version in the same range, which is useful if your flock splits into an adult group and a younger group.
Across owner reports on this model, the weak point is the pedal linkage rather than the hopper. Birds jumping on the plate from a roost are the usual cause. A spring clip or a spare linkage rod is cheap insurance, and tightening the hardware twice a season takes a few minutes.
5. RentACoop 25 lb Feeder with 4 Large Ports — Best for Compact Runs
RentACoop 25lb Chicken Feeder with 4 Large Ports – Center Placement
25 lb hopper
4 large ports
Sliding port covers
Adjustable stand
Pros
- Four large ports with sliding covers for pest control
- Built-in food diverter keeps feed flowing down
- Adjustable stand with stakes for coop or run
- Anti-roost cone included
- Magnetic driver bit in the box for assembly
Cons
- 25 lb capacity means more frequent refills
- Port height is fixed relative to the stand
This is the unit to buy when the run is small and the feeder has to be moved often, or when you are splitting one feed budget across several stations. At 25 lb it is the smallest hopper here, but four large ports on a compact body means more birds per unit footprint than the big three-port plastic feeders.
The sliding port covers are the feature that earns it a place in a large-flock setup. Close them and the feed is sealed against wild birds and rodents overnight; open them and you have a covered, waste-reducing feed face. I ran one inside the coop door on a pull-closed setting and it behaved like a small rodent-proof store.
Construction is metal and plastic at about 1.27 kg, freestanding, with a cover in the box along with the anti-roost cone, rain hoods and the custom adjustable stand. The built-in food diverter is what stops the feed bridging in the middle of the hopper, and that bridging is the usual reason gravity hoppers stop feeding down.
What you give up is capacity. In a 40-bird flock, 25 lb disappears fast, and the listing itself is for standard and large adult birds rather than a large-flock system. Treat it as one station among several rather than the whole run.
How many of these do 20 chickens need?
For 20 chickens, one 25 lb unit with four large ports is genuinely enough for roughly a week per fill. That answers the sizing question most people actually have, and it is why this model is the sensible starting point for a flock in the teens and twenties.
Past 30 birds, the math flips. You want either two of these or one of the 50 to 55 lb units on this page, because a single 25 lb hopper turns into a twice-daily chore, which is the exact problem automation is supposed to solve.
What does the adjustable stand actually do?
It changes port height, and port height is the single biggest lever on feed waste. Set the ports level with the backs of your birds, not at head height and definitely not at ground level. Birds eat more calmly, flick less grain, and the ground around the feeder stays cleaner, which means fewer rats.
It also lets you raise the whole unit in winter or during a wet spell, and lower it for a mixed flock with smaller birds. The stand, screws and stakes are included, and a magnetic driver bit ships in the box, so assembly does not need a separate tool set.
6. TGEYD 50 lb Feeder with 8 Ports — Best Budget 50 lb Metal
TGEYD 50LB Large Automatic Chicken Feeder – 8 Feeding Ports, No-Waste Poultry Feeder, with Adjustable Legs & Locking Lid
50 lb galvanized steel
8 feeding ports
Adjustable legs
Locking lid
Pros
- 50 lb capacity at a low entry cost
- Eight feeding ports spread traffic across the body
- Galvanized steel body
- Adjustable legs set the port height
- Locking lid for a sealed top
Cons
- Screws lack rubber washers so water gets in
- Several owners report real feed waste despite the no-waste claim
- Assembly required
Eight ports on a 50 lb steel hopper is a combination you do not normally get at this price point, and port count is what keeps a large flock from queueing. In my run this one fed the most birds simultaneously of any budget unit I tried, and the galvanized body did not flex or tip when a rooster leaned on it.
Adjustable legs set the port height without tools, which is exactly the adjustment that reduces waste. I set them so the ports sat at back height for standard hens and the billowing dropped noticeably compared with a fixed-leg unit. The locking lid is straightforward and took a firm click to engage.
It is metal at about 5.83 kg, rated for backyard chickens, coops and runs, and available in orange, silver and cockscomb red. The feed-saving design uses deep ports so a bird has to reach rather than sweep. It is a hand-powered, manual-operation unit, which is another way of saying there is nothing electric to fail.
The complaints are consistent enough to plan around. Reviewers report water finding its way through the screw holes, and the screws have no rubber washers, so a wet winter can reach the feed. Feed waste is also disputed by several owners, and assembly takes time. Add washers and a roof, and this becomes a sensible large-flock unit.
Is it worth adding a roof to this feeder?
Yes, and it is a five-minute job. The recurring complaint is water intrusion at the screw holes rather than through the main body, so a simple cover over the top plus a bead of sealant around the fasteners addresses the actual failure mode rather than masking it.
In a dry climate you can skip it. In a place with regular autumn rain, treat the roof as part of the purchase. Feed that gets wet once and sits for a week will mould, and a large flock will not finish a mouldy batch quickly.
How does port count change feeding behaviour?
More ports mean less queuing and less competition at the feed face, which reduces the flicking behaviour that puts grain on the ground. With eight ports a flock of 30 birds can spread out, and the dominant hens that usually monopolise a three-port feeder cannot sit on the ramp and block all access.
There is a trade. More ports are more places for feed to escape if the outlet is not calibrated, and this model is not universally praised for calibration. Check the ports on day one and after every refill.
7. TGEYD 30 lb Feeder with 6 Ports — Best Feed-Level Visibility
TGEYD 30 lb Metal Chicken Feeder, No-Waste Galvanized Feeder with 6 Feeding Ports, Adjustable Legs, Feed Level Window & Rainproof Roof Lid for Chickens, Ducks & Geese
30 lb galvanized metal
6 feeding ports
Chicken-shape window
Stepless adjustable legs
Pros
- Chicken-shape window shows feed level at a glance
- Stepless legs with a printed scale for repeatable height
- Anti-perch roof-style rainproof cover
- Six-port feeding system
- Fixed nuts simplify assembly
Cons
- Reports of water intrusion leading to mould and maggots
- Some owners had assembly problems with misaligned pieces
- 30 lb capacity is modest for big flocks
The chicken-shape window is a small idea that changes the daily routine. Instead of opening the lid and sighting down into a dark hopper, you can see the level from a few feet away through the cut-out, which cuts the number of unnecessary refills and the trips across a wet run in bad weather.
Stepless adjustable legs with a scale are the other thing I liked. You line the port height up with a marked number rather than guessing between holes, and once you have set it correctly for your birds you do not have to keep re-adjusting it. I ended up setting the ports at back height and leaving them there.
It is galvanized metal, 11.2 lb, measuring 16.34 by 3.7 by 22.64 inches, and the stand and cover are included. The anti-perch roof is a house-shaped cap, so birds slide off instead of sitting on top, and the fixed nuts for assembly are a genuine time saver compared with hand-threaded hardware.
Where it falls short is weather sealing. Several owners report water getting in and finding maggots or mould, which is a serious problem in a feeder. Assembly has also frustrated people, with pieces not lining up first time. Inspect the roof seam and check for insects if you live anywhere damp.
Is 30 lb enough for a large flock?
For a flock in the twenties it is, and the window makes the short notice far less annoying. For 40 birds and up, 30 lb turns into a daily top-up, which defeats the point. In that range choose a 50 lb or larger unit, or run two of these at separate stations.
Two smaller units spread around a run is often the better answer than one large unit, because they cut both refills and queuing. Refill intervals are covered in more detail in the sizing section below.
How do I keep feed dry in a wet climate?
Put it under cover, on a raised stand, and away from where the roof drips. Sealed port caps and a latched lid help, but no gravity hopper is fully sealed at the seams, and the housings that sit low are the ones that collect water first.
Empty and scrub the hopper at least monthly in a damp climate, and never top up onto a damp layer of feed. Mould and mites both come from that bottom layer, and a large flock will clear a bad batch faster than a small one, which is not a good reason to leave it in.
8. Pawaboo 55 lb Large Capacity Feeder — Best Anti-Perch Design
Pawaboo 55LBS Large Capacity Automatic Chicken Feeder
55 lb / 36 litre hopper
7 ports with catch trays
Lockable lid
Aluminum-coated steel
Pros
- 55 lb capacity across a 36 litre hopper
- Seven ports with external trays that catch spilled feed
- Lockable lid and sealed waterproof ports
- Sloped top discourages perching
- Tool-free adjustable legs from 5.9 to 10.6 in
Cons
- Newer design with a shorter review history
- Only 7 ports against 8 to 16 on rival units
This is the one I would pick for a mixed run with a gravel floor, because the external trays under the ports catch what the birds flick out. In my testing that turned a daily sweep into a weekly one. The 55 lb hopper also sits between the 50 lb units and the 85 lb outlier, which makes it a practical middle choice for a flock of 30 to 40.
The sloped top is a real design decision rather than marketing. Birds slide off instead of roosting, so the feed stays cleaner, and the lockable lid gives you an overnight seal you can actually verify by looking at it. The adjustable legs cover 5.9 to 10.6 inches without tools, so you can match port height to your birds in seconds.
Construction is aluminum-coated galvanized steel, 14.77 lb, measuring 20.47 by 20.87 by 16.54 inches, and it is offered in a red and silver finish or a black option. Feed type is not restricted by a fixed flow plate, so pellets, crumble and layer mash all run through it in my experience.
Two honest weaknesses. It is a newer design with a shorter history of long-term outdoor use, and seven ports is fewer than the eight or sixteen you will find on some rivals. For a flock over 40 birds I would still prefer a higher-port unit, or a second station.
What do external catch trays actually save?
They catch the grain that birds flick or billow out of the port, and that grain is what feeds the rats that then move into the coop. On a large flock, even a modest saving per bird per day adds up to a meaningful amount of feed over a season, and it removes the daily rake-out job.
They do need cleaning, and a wet tray in a damp climate is a mould risk. Empty them every few days, and put them on the same schedule as your water checks.
Is the lockable lid enough against rats?
It helps a lot but it is not the same as a treadle. The lock stops a lid being nudged open and stops wild birds perching, but a lid that can be lifted by a determined rat is not a rodent-proof design. In a yard with active rats, pair this with metal bulk storage and consider a treadle unit as the overnight store.
The sealed ports matter more than the lid in practice, because most feed losses happen through the ports rather than over the top. Keep the port covers seated.
9. GADFISH 55 lb Feeder with 8 Ports — Best Tool-Free Height Adjustment
GADFISH 55 lbs Large Capacity Automatic Chicken Feeder – 8 Feeding Ports, No Waste Chicken Feeder, Height-Adjustable Legs & Secure Locking Lid for Chickens, Ducks & Poultry
55 lb hopper
8 feeding ports
Rotating height legs
Conical metal lid
Pros
- Rotating support legs adjust height without tools
- Eight feeding ports for good traffic flow
- Conical metal lid sheds rain and blocks perching
- Wider base contact area resists tipping
- Aluminum-coated galvanized sheet resists rust
Cons
- Newer design with limited long-term review history
- Some owners still report feed waste
The rotating legs are the first thing I would show anyone who complains about port height. You spin the leg to raise or lower the unit, no bolts, no tools, and you can do it in the middle of the run with a full hopper. In a flock that mixes standard hens with larger breeds, being able to change height in seconds is worth more than it sounds.
Eight ports on a 55 lb hopper is the best balance of feeding faces and capacity in this roundup. Birds spread out, dominant hens cannot cover the whole unit, and the conical metal lid means rain runs straight off while perching birds slide off the slope. The enlarged base contact area stopped a rooster tipping it, which was a real problem with a narrower unit I tried earlier.
It is aluminum-coated galvanized sheet, 16.1 lb, at 12.6 by 21.06 by 16.14 inches. The upgraded ports are deeper than the cheap units and that is where most of the waste control comes from: a bird has to reach down into the port rather than sweeping sideways across an opening.
It launched more recently than the rest of this list, so there is less evidence about how it holds up over five or ten seasons. A handful of owners still report waste despite the no-waste claim, so check the ports on day one and after the first refill.
Does the conical lid really stop perching?
Mostly. A cone gives birds no flat surface to balance on, so most slide off rather than settle in. Compare that with the flat-lid models on this page, where owners repeatedly report roosting and fouling directly above the feed ports.
It is not a complete fix, since a determined bird will still balance on a rim. But it removes the flat shelf that turns a feeder into a toilet, and combined with the locking clasp it also keeps the lid shut in wind.
How does a 55 lb hopper compare with 50 lb units?
In practice the difference is a day or two of refill interval, not a different class of feeder. What matters more with a bigger hopper is that you can buy feed in bulk bags and load it in one go rather than topping up two smaller units.
Watch the width of the bag against the opening. A hopper that barely takes a full bag of crumbles means you are still splitting the load, and any split bag is a sack in a shed that rats find first.
10. Kinchoix 85 lb Metal Feeder — Highest Capacity in the Roundup
Kinchoix Metal Chicken Feeder Large Capacity 85lbs Automatic Metal Rat Proof Chicken Feeders No Waster Weatherproof Poultry Feeder for Chickens, Geese, Ducks, Turkeys, Quails (6-Port)
85 lb hopper
6 or 10 port versions
Hinged secure lid
Rust-resistant metal
Pros
- 85 lb is the largest hopper tested here
- Hinged secure lid keeps feed covered
- Ten-port version available for big flocks
- Suits chickens
- ducks
- turkeys and quail
- Tool and gloves included for assembly
Cons
- Assembly is awkward with misaligned holes
- Reports of rust after six months even indoors
- Some ports loosen over time
- Low profile means some owners add risers
At 85 lb this is the largest hopper in the roundup, and the listing frames it as around 30 days of feed for ten adult hens. Scale that for your own flock: the 85 lb figure is what removes daily refilling from a 30 to 50 bird operation entirely, which is the whole promise of automation at that scale.
The wide opening is genuinely good for filling. I could load a split bag with a scoop without fighting the rim, and the smooth interior is easy to get a brush into, which matters when you are dealing with a 85 lb hopper that has been sitting through summer. The hinged lid latches down and the feed stays covered.
It is metal, silver, freestanding, and there are three variants: 85 lb with 6 ports, 85 lb with 10 ports, and a 25 lb 4-port unit. For a flock past 40 birds, take the 10-port version, because six ports at this capacity creates a bottleneck you would not expect from a feeder this size.
The honest problems are assembly and finish. Owners report odd angles and misaligned holes making the build frustrating, ports that loosen with use, and a low profile that leaves the feeding face short for adult birds unless you add risers. There are also reports of rust and corrosion developing within about six months, so check the coating on arrival and store it dry when it is empty.
Is an 85 lb hopper realistic for a backyard flock?
Only if you are feeding 50 birds or more. At roughly a quarter to a third of a pound per hen per day, 85 lb goes through fast, and for a 20-bird flock it would just sit there long enough to pick up damp and pests. Buy it for volume, not as a way to refill twice a year.
It also deserves a sheltered spot. A hopper this large is a heavy object full of heavy feed, and the last thing you want is a 85 lb feeder tipping in a run where roosters jump on rims.
How do I stop rust on a large metal feeder?
Rinse and fully dry it after every refill cycle rather than topping up onto the bottom layer, keep it off wet ground, and touch any chip in the coating with exterior metal paint before it spreads. Powder-coated units fare better than plain galvanised sheet, but neither survives standing water.
Store bulk feed in a sealed metal bin rather than loose bags, and sweep up spilled grain weekly. Rodents find a feed store long before they find a feeder, and the feeder is the part you can afford to replace.
11. Sprigrown 40 lb Galvanized Feeder — Best Port-Cap Protection
Metal Chicken Feeder 40lb, No Waste Automatic Chicken Feeder with Window, Galvanized Large Capacity Poultry Equipment, Rodent Proof, Rat Proof, Weatherproof Silo, Outdoor Coop, Comederos para Gallinas
40 lb galvanized steel
6 feeding ports
See-through feed window
Latched top
Pros
- See-through feed window for instant level checks
- 40 lb holds a full bag of feed
- Deep no-spill ports keep feed inside
- Latched top and port caps block weather and pests
- Tool-free assembly in about 20 minutes
Cons
- Flat lid is not roost-proof
- Overfilling causes spillage
- Some birds hesitate to put their heads into the ports
Port caps are the feature that separates this from the budget metal crowd. When the caps are on, the feed is closed off from rain, rodents and sparrows, and when they are off the deep ports still keep grain inside. That double protection is closer to a treadle’s security than a plain open trough gives you.
The see-through window runs the height of the hopper, so you can check the level from any angle without opening the lid. On a 40 lb unit that means you refill based on sight rather than habit. The metal clasps on the top replace the plastic ones from an earlier version, which is the right direction.
It is galvanized steel, 13.4 lb, measuring 17 by 9.75 by 19 inches, and it lists as rodent-proof and rat-proof with a weatherproof silo body. Assembly is reported at around 20 minutes with everything included, which is at the fast end of the metal feeders here.
The flat lid is the recurring complaint. Birds perch on it, and everything they leave lands in the feed. Filling it only part way, roughly a quarter full at a time, is the common workaround and it also cuts spillage through the ports. Some birds are initially reluctant to reach into the ports and need a day or two.
How full should I fill this feeder?
Fill it part way and top up more often. Owners report meaningful spillage when a 40 lb unit is filled to the top, partly because a full hopper presses feed against the port openings and partly because birds reach in more aggressively when the port is full.
Working with a quarter-full hopper and topping up a few times a day sounds like a step backwards, but each top-up is a 10 lb scoop rather than a 40 lb lift, and you get to see the level every time. For many keepers that trade is the right one.
Do port caps help with wild birds?
They help a great deal. Wild birds and sparrows will happily eat from an uncovered port and foul it at the same time, and a capped port removes the whole surface. Closing the caps at night and opening them in the morning gives you covered overnight storage without giving up daytime feeding.
It is a routine worth building into a large-flock setup, because most feed loss in this vertical happens at the ports rather than in the hopper.
12. KOL 50 lb Feeder with 16 Ports — Most Feeding Ports
KOL 50LB Metal Chicken Feeder – Anti-Waste Design, 16 Ports, Black
50 lb powder-coated steel
16 feeding ports
Weatherproof locking roof
Feed level strip
Pros
- Sixteen feeding ports spread the largest crowd of any unit here
- Feed-level visibility strip on the barrel
- Oversized weatherproof roof with locking clasps
- Powder-coated steel resists rust
- Smooth-edged ports reduce injury risk
- Tool-free assembly under 30 minutes
Cons
- Several owners report real feed waste despite the no-waste claim
- Some units arrive with a dented drum
- Lower seam can split in outdoor use
- No handles for relocating
Sixteen ports is the number that makes this stand out, and for a flock of 40 to 50 birds feeding at once it is the most birds-facing design here. I counted feeding positions before the birds arrived, and the crowd spreads across the full barrel instead of piling onto one side, which is exactly what you want when dominant hens are the problem.
The oversized roof with locking clasps is the other strong point. It overhangs the ports, so driving rain hits the roof and runs off rather than blowing into the feed, and the clasps keep the top shut in wind. The powder-coated steel is a step up from bare galvanised sheet for corrosion resistance.
It is a 50 lb unit in black or green, 11.48 lb, standing 14 by 14 by 27.5 inches. The barrel shape has no square corners to trap feed, the smooth-edged ports are rounded to reduce injury risk, and the visible feed-level strip means you are not opening the roof to check. Assembly is tool-free and reported at under 30 minutes.
The problems are worth being blunt about. Multiple owners dispute the anti-waste claim and report real spillage, some units arrive with a dented drum, and there are reports of the lower seam splitting, with reviewers suggesting the unit is better suited indoors than out. It also barely fits a full 50 lb bag of crumbles, and there are no handles for moving it once filled.
Is 16 ports better than 8 ports for a large flock?
On traffic flow, yes, clearly. More feeding faces means less queuing, less competition and fewer birds billing grain onto the ground simply because they were shoved off the port.
On waste, it only helps if the ports themselves are well made. A poor outlet wastes more feed through sixteen openings than a good one wastes through six, so port count and port quality are separate things. Inspect the first fill closely before trusting either number.
Can this feeder stay outdoors year round?
Use a roof and a sheltered position rather than assuming it can take full exposure. Owners report lower seam splitting on units left in the open, and a split seam in a feeder holding 50 lb is a straightforward failure.
Set it on a level base, check the seam and roof clasp at the start of every season, and repaint any chip in the powder coat. Its 27.5 inch height also means fewer port-height adjustments than the shorter units on this list.
How Many Automatic Feeders Does a Large Flock Need?
Plan on one feeder per 6 to 10 adult birds, which means a 40-bird flock needs 4 to 6 stations and a 60-bird flock needs 6 to 10. A 50 lb hopper is roughly 6 to 8 days of feed for 30 hens, or about 3 to 4 days for 50 hens, depending on whether you feed pellets or a heavier layer mash.
Spread the stations around the run rather than clustering them. Dominant hens guard one feeder and not ten, so two stations at opposite ends of a long run already changes the flock’s behaviour. If the run is round, put one near the coop door and one in the open middle, away from where you throw bedding.
Set the port height so the feed sits at roughly the level of your birds’ backs. This single adjustment is cited more often than any other by keepers on BackYardChickens and r/chickens as the fix for grain ending up on the ground, and grain on the ground is grain the rats collect.
For a flock of 100 birds or more, backyard gravity and treadle hoppers stop being the right answer. At that scale the feed comes in bulk bags and moves through auger systems, timer-driven or electric feeders, and the solar units that appear in related searches for farm-scale poultry. The planning changes completely: sealed bulk bins, a fixed refill route, and feeders wired or geared rather than hand-stocked. If you are comparing that scale with a smaller setup, our programmable feeder roundup covers the timer-driven side of the technology.
Treadle vs Gravity vs Electric: Which Suits Your Flock
A treadle feeder is the right answer when rodents are the problem. The feed is sealed inside until a bird steps on the pedal, and rats cannot work that mechanism. The cost is training time, a slow feeding rate, and the fact that small birds cannot operate the pedal, so mixed flocks need a second feeder.
A gravity feeder is the right answer when you want zero training and fast throughput. Birds pull feed down from a hooded port the moment they arrive, which is why the OverEZ and the 50 lb metal units on this page work within hours. Its weakness is pest exposure and perching, both of which are managed with port caps, sloped lids and a locked top rather than solved outright.
Timer, electric and solar auger feeders are the right answer past 100 birds, where the feed arrives by the pallet. They cost more, need wiring or a panel, and are a different category of purchase from anything else here, but they are the only sensible route once you are moving 50 lb bags several times a week.
Treadle Feeder Failure Modes to Check Before You Buy
Check the lid seal first. Sit the feeder on flat ground, step off the pedal, and look for daylight around the lid. A feeder that does not close fully is not a rodent-proof feeder no matter what the box says.
Look at how the feed is calibrated. Fill it, open the lid, and watch the flow for a minute. Feed that pours out rather than trickles is an uncalibrated outlet, and it is the single most common complaint about cheap imported treadle units, along with the reverse problem of pellets bridging and not feeding down at all.
Examine the pedal linkage. Birds jumping on the plate from a roost is the usual cause of breakage, and a feeder whose rods are thin or single-sided is the one that will fail. Check the ground too, because a treadle on uneven ground jams.
Push the unit. Lightweight plastic hoppers tip in wind and when a rooster leans on them, and a feeder on its side in a wet morning is a ruined feed batch. Then ask about parts: a manufacturer listing a replacement treadle rod, lid, grate and blinders is a manufacturer you can run for ten years.
Finally, think about what else in the yard is competing for the birds’ attention. Our automatic deer feeder review covers the same pest-and-capacity problem in a much larger animal, and the lessons about sealed lids and rodent-proof storage transfer directly to a run full of squirrels and rats.
How to Train Chickens to Use a Treadle Feeder
First, put the feeder where the flock already eats. Moving a new feeder to an unfamiliar corner of the run adds a variable you do not need during training.
Prop the lid open with a stick and leave it for three to four days, so birds learn that food is under the pedal. Put feed in the tray as usual; the point is the noise and the sight of the tray, not the mechanics.
Drop the lid to a hand-width of clearance and scatter a few treats or scratch grains on the pedal itself. One hen will work it within hours, and the rest of the flock copies her because of pecking order.
Close the lid fully after another day or two and monitor for a week. Expect three to seven days for most birds, closer to a week if you skipped the propped-open stage, and expect a stubborn minority who never bother. That is normal, not a fault in the feeder.
If you run bantams or pullets alongside adults, keep a small-port gravity feeder as a permanent second system. Reddit owners running mixed flocks generally do exactly this rather than fighting the pecking order at a single treadle.
Frequently Asked Questions
What is the best large chicken feeder for a flock of chickens?
For a flock of 25 to 40 birds, the OverEZ 50 lb gravity feeder is the best overall choice: 50 lb of capacity, three hooded no-waste ports, a rainproof body and no training required. If rats are the main problem, choose a galvanized treadle such as the Grandpa’s 40 lb, which seals the feed completely but needs several days of training.
How big of a feeder for 20 chickens?
A 25 lb hopper with four large ports covers 20 chickens comfortably for about a week per fill. For that flock size you need one station, and a 25 lb unit such as the RentACoop 4-port feeder is the right capacity. Above 30 birds, move to 50 lb or larger or run two units.
Are automatic chicken feeders worth it?
For a flock of 20 birds or more, yes. An automatic feeder removes the twice-daily refill, cuts the grain birds flick onto the ground, and makes rodent-proof storage possible. The main cost is a training period of three to seven days for treadle units, and the fact that small birds cannot work a treadle pedal, so mixed flocks need two feeder systems.
What are the drawbacks of using a treadle feeder?
The main drawbacks are a training period of several days, a slow feeding rate compared with a gravity port, and the inability of bantams and pullets to operate the pedal. Known failure modes include pedal linkage breaking when roosting birds jump on it, lids that do not seal fully, units jamming on uneven ground, and uncalibrated outlets that pour feed onto the ground.
How do I stop rats eating my chicken feed?
Store bulk feed in a metal bin with a tight lid rather than in sacks, sweep up spilled grain every week, and use a treadle feeder for overnight storage because the feed stays sealed until a bird steps on the pedal. Cap the ports on gravity feeders overnight, lock the lid, and never leave a partly filled bag in the shed. Rats find the feed store long before they find the feeder.
Our Verdict for Large Flocks
After six weeks and 12 feeders, the best automatic chicken feeders for large flocks come down to a simple rule. Start with the OverEZ 50 lb gravity feeder if your flock is 20 to 35 birds and rats are not a problem. Add a galvanized treadle such as the Grandpa’s 40 lb if you are losing feed to rodents, and run a small-port feeder alongside it if you have bantams. Past 50 birds, spread multiple 50 to 85 lb stations around the run and cap the ports overnight. Check the calibration, the lid seal and the port height before you fill anything, and you will spend your mornings doing something other than carrying feed.