Feed is the biggest recurring bill in any backyard flock, and on a large flock it is the bill that quietly gets out of control. An open trough feeder lets hens scratch and beak feed straight onto the ground until half of every fill is wasted, and the spilled feed is exactly what rats burrow under the run to reach overnight. On top of that, a 3-pound trough needs topping up every morning before work.
That is why we treat a large flock as 30 birds or more. At that size you are not buying a feeder, you are buying days of feed storage and a seal you can trust. We went through ten high-capacity feeders built for flocks this size, checked the port counts, materials, lids and refill intervals, and talked through what owners report after a season of real use.
For anyone searching for the best chicken feeders for large flocks, the short answer is this: a 50 lb gravity feeder with a rain hood handles most 30 to 50 bird flocks, a treadle feeder is the only real answer if rodents are the problem, and anything above 65 lb is for 60 birds or more or for owners who genuinely do not want to carry feed for a month. Everything below is built around that math.
Table of Contents
Top 3 Picks for Large Flock Feeding (October 2026)
Grandpa’s 40 lb Treadle
- Treadle opens on demand
- Fully rat-proof galvanized lid
- Anti-flick grill
RentACoop 50 lb Metal Trough
- 50 lb galvanized capacity
- Removable rain hood
- Side feed-level window
If you want one feeder for a 12 to 20 hen flock and you refill it on your own schedule, the OverEZ is the one. If you have ever seen rats tunnel under your run, skip ahead to the treadle section, because no amount of capacity solves that problem. If you want the most feed storage per unit of money and you are not worried about squirrels, the RentACoop trough is hard to argue with.
Quick Comparison: Best Chicken Feeders for Large Flocks in 2026
| Product | Specs | Action |
|---|---|---|
| OverEZ 50 lb Gravity Feeder |
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| Grandpa’s 40 lb Treadle Feeder |
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| RentACoop 50 lb Metal Trough |
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 Little Giant 60 lb Dome Feeder |
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 RentACoop 40 lb Treadle Feeder |
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 RentACoop 65 lb Six-Port Feeder |
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 Tgeyd 95 lb Ten-Port Feeder |
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 BUYYAH 100 lb Galvanized Feeder |
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 Dogetgd 85 lb Ten-Port Feeder |
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 HAYOHRT 85 lb Ten-Port Feeder |
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Two numbers matter more than everything else on that table: how many pounds it holds and how many ports birds can use at the same time. A 95 lb tank with three ports is a storage container that serializes dinner. A 50 lb tank with six ports keeps a 40 bird flock eating at once.
1. OverEZ 50 lb Feeder – Best Overall Gravity Feeder for a 12 to 20 Hen Flock
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 capacity
3 feeding ports
13L x 17W x 23H
UV-protected plastic
Pros
- Holds up to 50 lb
- Three no-waste ports keep feed dry and clean
- Refill every 1-2 weeks for 12-15 hens
- Wide mouth cleans on the ground
Cons
- Only three birds feed at once
- Shallow base lets big birds scratch
- Plastic can degrade under hard pecking
This is the feeder we would put in a coop with a dozen hens and a couple of roosters. It stands 13 inches long by 17 wide by 23 high, weighs 5.4 pounds, and that low weight matters because you can lift the whole thing to shake out old feed without wrestling it.
The feed path is gravity-fed through an angled floor into three recessed ports under an overhang, so rainwater runs off the cover instead of into the channel. Owners with a 12 to 15 hen flock report refilling every one to two weeks, and the same refill stretches to two to three weeks for 6 to 11 hens.
The honest limitation is port count. Three ports means three birds eating at a time. On a 30 bird flock that turns into a queue every evening, and queueing at a feeder is where pecking order gets enforced. If your birds are all full size and similar in height, the trade is usually worth it. If you run roosters, ducks or anything with a tall comb, the six-port units further down will serve you better.
The plastic is UV-protected, food-safe and recyclable, and owners generally report it staying bone dry inside through thunderstorms. That matches what we hear about plastic gravity feeders generally: they keep water out well, but they do nothing to keep feed in, and birds do scratch feed back out of an open port.
What you should know before buying
Buy it if your flock is 12 to 20 birds of similar size and you want the shortest refill interval on the list. Think twice if your run includes shorter birds that need to reach the ports comfortably, because the port height is fixed by the base geometry.
The wide top opening means you can clean and refill without tools and without taking the unit apart. That is the feature that keeps most owners using it year after year instead of abandoning it in a corner.
Where it falls short
Three ports is the whole argument against it for a large flock. It is a storage container first and a feeding station second, and on a 30 bird flock you will want a second unit rather than a bigger one.
Owners also report that determined large hens can work at the plastic over time. Plastic that holds its shape for three seasons in a temperate run may not, so check it each spring before you rely on it for a month of feed.
2. Grandpa’s 40 lb Treadle Feeder – Best Rodent Proof Option for Rats and Wild Birds
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
22 x 18 x 16 in
23 lb build
Treadle activated
Pros
- Keeps rats and wild birds out entirely
- Anti-flick grill stops feed tossing
- Side guards prevent pecking injury
- Made in the USA
Cons
- Some flocks never learn the treadle
- Flat lid invites roosting
- Treadle step can loosen over time
When we say rodent proof, we mean the lid is shut and there is nothing a rat can chew, dig under or lever open. This is a galvanized steel box with a full-coverage lid and a treadle door underneath, and the door only moves while a bird is standing on the step. When the flock stops eating, the feed is sealed again.
Capacity is 40 lb, and the manufacturer rates it for 6 to 12 chickens for up to 10 days. That is the number that trips people up. One unit is not a 40 bird feeder by itself, and the backyardchickens forum threads on large flocks are clear that treadles scale by feeder count, not by capacity, which is why owners of bigger flocks report running two of them side by side.
The anti-flick grill and the side guards are the anti-waste engineering here. The grill stops a bird flicking a beakful of feed out of the trough, and the side guards stop birds reaching in from the side, which is what causes pecking wounds around the head and neck in a crowded flock.
The step plate is perforated for grip and it sits high enough that the raised position works on uneven ground. That said, there is a minimum bird weight requirement, so this is not a bantam or chick feeder and it will not serve a mixed flock with juveniles.
What you should know before buying
Expect a training period. Owners report most flocks figured it out inside a week, but the moving metal plate startles birds the first few times and a nervous flock may need you standing nearby. We would put the feeder on its normal spot and let the dominant hens find it first.
The lid latch and steel build are the reason it has stayed popular for decades. In a rat area this is the difference between feeding your flock and feeding the local rodent population as well.
Where it falls short
Some flocks simply refuse it. That is not a defect, it is bird behaviour, and it is the single most repeated complaint across treadle feeder reviews. Train it for two weeks and if the birds still ignore it, move on rather than fight it.
The flat top is a roosting perch, and birds that sit on it put manure right above your feed. A cheap anti-roost wire grid over the lid fixes this for very little money and is the first modification we would make.
3. RentACoop 50 lb Metal Trough Feeder – Best Value Galvanized Feeder for 20 to 40 Birds
RentACoop 50lb Gravity-Fed Metal Trough Feeder with Lid & Rain Cover
50 lb galvanized metal
22 x 14 x 10 in
Removable rain hood
Side window
Pros
- Heavy galvanized sheet with stainless screws
- 50 lb cuts refill trips
- Side window shows feed level
- Grate unclips for cleaning
Cons
- Open trough invites wild birds and rodents
- Gravity feed may need a nudge
- Not suitable for chicks
This is the workhorse. It holds 50 lb of feed in a galvanized sheet metal trough measuring 22 inches long by 14 wide by 10 high, it comes with a removable rain hood and a magnetic lid, and it takes pellets, crumbles or scratch grains without complaint.
The interior grate is the part that matters most on a large flock. It stops birds raking feed onto the ground, and it unclips upward and out of the way when you want to hose the trough clean or when smaller birds need to reach the feed. The side view window is a small thing that saves a lot of lifting, because you can check the level without opening the lid.
Because the trough is open along the top under a hood, this is a feeder for a run that is already fenced against wild birds and where rodents are not your main problem. If rats are your main problem, the treadle options do a better job.
Owners with 10 to 30 bird flocks report the refill interval dropping to roughly weekly, which on a large flock is the difference between carrying feed every morning and carrying it once.
What you should know before buying
Galvanized sheet metal with stainless steel screws is a combination that holds up outdoors season after season, and owners in coastal areas specifically call it out as holding up better than exposed plastic. It is also the easiest feeder here to deep clean.
It is not for chicks, and it will not stop a determined squirrel. Treat the removable rain hood as optional rather than permanent if your run gets sideways rain.
Where it falls short
An open trough is exposed feed by definition. In an unsealed run you will be feeding wild birds along with your flock, and no amount of extra capacity changes that.
Gravity flow can stall if the feed sits too high or the trough is knocked out of level, so a quick knock on the side every few days keeps feed moving to the ports.
4. Little Giant 60 lb Dome Feeder – Best Transparent Gravity Tank for 30 to 50 Birds
Little Giant® Plastic Dome Feeder | Heavy Duty Plastic Gravity Fed Poultry Feed Container Tank | Backyard Poultry for Hobbyists, Farmers and Ranchers | 60 LB
60 lb capacity
30.75 x 18.25 x 18.25 in
Transparent plastic
Three legs
Pros
- 60 lb holds a full bag of feed
- See-through jar shows level
- Legs keep feed off the ground
- Base disassembles for cleaning
Cons
- No sealed lid against rodents or wild birds
- Plastic can embrittle after seasons
- Gravity ports need trough top-ups
When you want to know how much feed is in the feeder without opening anything, the Little Giant is the one. The jar is transparent, so you glance across the run and see the level, and at 60 lb it holds more than a full bag of feed.
It measures 30.75 inches long by 18.25 wide by 18.25 high and stands on three legs, which keeps the feed off damp ground and away from the dirt the birds scratch up. The Feed Saver ring at the base minimizes spillage and the whole base comes apart for cleaning, which matters more than it sounds when manure blows into a feeder all summer.
Heavy-duty plastic is specified to withstand heat and cold, and owners running this in mixed climates report it holding up well. The recurring note across several seasons of use is that the body can eventually embrittle and crack, usually at a seam near the base, once it has been through repeated freeze-thaw cycles.
Like the RentACoop trough, this is an open-port design. It is for sealed runs and mild-to-moderate weather, not for a yard with squirrels digging under the fence.
What you should know before buying
At 60 lb this is one of the largest gravity dome feeders on the market, so it covers a 30 to 50 bird flock with roughly weekly refills. The three legs also raise the ports, which helps with taller birds.
The transparent jar is the quiet winner for anyone who has ever knelt down in the mud to check whether the feeder was empty. You can see it from a distance.
Where it falls short
There is no sealed lid, so rodents and wild birds have free access. If you have ever seen rats tunnel under a run, a 60 lb open feeder will make that problem considerably worse, not better.
Gravity ports empty into a trough that can need topping up as the birds work through the top layer of feed. It is a small chore, but it is a real one.
5. RentACoop 40 lb Treadle Feeder – Best Treadle for Mixed Flocks and Crumble Feed
RentACoop Automatic Treadle Chicken Feeder, Rat Proof No Waste, 40 lb
40 lb galvanized metal
21 x 14.5 x 14.5 in
Adjustable flow plate
Detachable step weight
Pros
- Treadle locks out rats and wild birds
- Flow plate adjusts for pellets or crumble
- Step weight suits bantams and silkies
- Anti-roost lid included
Cons
- Some flocks never adopt the treadle
- Lid gap lets wind-driven rain in
- Metal plate gets hot in direct sun
If you have ever asked whether a treadle can handle a large flock, this is the version to understand. It is a 40 lb galvanized metal body with stainless hardware, measuring 21 by 14.5 by 14.5 inches, and it carries the same sealed-when-closed logic as any treadle: no open feed between meals.
Two details separate it from the simpler treadles. The internal feed-flow plate adjusts, set higher for pellets and lower for crumble and grains, which matters if you feed crumble because fine feed bridges and clogs more easily than pellets. The detachable step weight lets you lighten the trigger so smaller breeds such as bantams and silkies can operate it.
Owners with rat problems report this resolves them outright and produces close to zero feed waste once the flock is trained. The grate in the trough stops birds raking feed onto the ground, and the anti-roost lid stops birds perching on top of it.
On a 30 bird flock the realistic answer is feeder count, not feeder size. Two of these handle a flock that size, and the running cost of several treadles is exactly why owners weigh them against a single large gravity tank.
What you should know before buying
The step lock closes the treadle overnight on a schedule you set, so the feeder is sealed when the birds are asleep. That is the feature that makes it usable in a yard where you cannot check every evening.
If you feed crumble, adjust the flow plate before you fill it. This is the most direct answer we found to the clogging complaints that keep appearing in poultry forums, where owners feed crumble and assume every feeder handles it equally.
Where it falls short
Birds that never take to the treadle will lose condition rather than use it, and that is the top complaint. Some flocks also report the lid not sitting where the latches engage, leaving a permanent gap that lets wind-driven rain soak the top layer of feed.
In direct sun the metal plate gets hot enough that some owners shade the feeder or line it. In a hot climate, place it in shade rather than in the open run.
6. RentACoop 65 lb Six-Port Feeder – Best for Roosters, Ducks and Turkeys
RentACoop 65 lb Large Capacity Chicken Feeder with 6 Ports, Adjustable Legs
65 lb capacity
6 large ports
23 x 11 x 17 in
Adjustable legs
Pros
- 65 lb holds more than a full bag
- Big ports suit roosters and turkeys
- Ports keep feed away from squirrels
- Raised legs clear damp ground
Cons
- Transit damage and dented replacements
- Port covers are easy to lose
- Raccoons can work the lid open
Port size is the whole story here. The six ports on this unit are noticeably larger than the small ports on most large-capacity feeders, and owners running mixed flocks single this out as the reason roosters, ducks and turkeys can all eat from the same box instead of bullying the smaller birds away.
At 65 lb it holds more than a full 50 lb bag of feed, which moves refills to roughly weekly for a 30 to 40 bird flock. Two internal feed diverters spread the flow so the first birds at the feeder do not empty one corner of the box.
The adjustable legs are more than a comfort feature. Raising the feeder keeps damp ground out of the feed and sets the port height for different bird sizes, and owners report feed staying dry through heavy rain as long as the unit is not sitting directly under an over-head misters line.
It is designed for adult birds over 12 weeks, which covers a large layer flock with a few mature cockerels in it.
What you should know before buying
The wide top opening and removable peaked lid make refilling and hosing off quick, and the integrated side handles let one person move a full unit. Birds typically start using the ports within a day or two of feed being placed on the lip.
If your flock includes large-feathered breeds such as Polish, this is the kind of port size those birds can actually use, and that is a real limitation on the smaller-port designs.
Where it falls short
Transit damage is the main deduction on this unit. Reports of dented deliveries, and of replacements arriving dented too, come up often, so inspect the box before you sign for it.
The optional port covers are small, loose and easy to lose. Raccoons have also been reported working the lid off, so this is not the choice for a yard with determined raccoons.
7. Tgeyd 95 lb Ten-Port Feeder – Best High-Capacity Value for 50 to 100 Birds
95 lb Chicken Feeder with 10 No-Waste Ports – Extra-Large Galvanized Metal Poultry Feeder with Adjustable Height Heavy-Duty Stand – Outdoor Feed Box for Chickens, Ducks & Geese
95 lb capacity
10 angled ports
23.6 x 12.2 x 25.8 in
Galvanized steel
Pros
- 95 lb at a low cost per pound
- Ten angled no-waste ports
- Galvanized body for year-round use
- Adjustable-height stand
Cons
- Some feed still leaves the ports
- Not squirrel or raccoon proof
- Stated capacity can run optimistic
Capacity per pound spent is where this unit wins, and at 95 lb it is one of the largest on this list. For a 50 to 100 bird flock it is the shortest walk to a month of feed storage, and the ten specially angled ports mean the flock is not queued three deep at the front of the box.
The body is galvanized steel with a hinged locking lid and riveted side handles, so it can be lifted when full and it keeps rain off the feed. The adjustable-height stand lets you set the ports for chicks, hens or larger birds on the same feeder.
The angled ports do reduce mess compared with an open pan, though owners report some residual spill regardless of the design. Treat this as a substantial waste improvement rather than a sealed one.
Rated 4.3 stars across a smaller pool of reviews than the units above it, the pattern in those reviews is consistent: people buy it for the capacity, they rate it good value, and they come back with the note that it is not built to withstand squirrels.
What you should know before buying
Ten ports is the number that makes a 50 bird flock eat at once instead of in shifts. If your birds are a similar size, that alone will cut the amount of squabbling at the feeder.
The hinged lid and riveted handles make this practical to move and to close in bad weather. For an owner who is not present every day, having a lid you can drop quickly matters.
Where it falls short
It is not rodent-proof against determined squirrels or raccoons, and the ports do not stop waste entirely. If you already have a squirrel problem, this will not solve it.
Some owners find the real capacity lower than the stated figure once feed settles, so plan your refill calendar on the assumption you get a bit less than 95 lb.
8. BUYYAH 100 lb Galvanized Feeder – Best for Owners Who Refill Monthly
BUYYAH 100lb Capacity Automatic Chicken Feeder
100 lb capacity
Galvanized steel
Waterproof lid
Port hole covers included
Pros
- Largest capacity in the group
- Covers let you close unused ports
- Treadle-style flow keeps feed moving
- Galvanized for outdoor use
Cons
- Predrilled holes often misalign
- Sharp burrs from cut screws
- Lid hinge loosens and gaps over time
The stated capacity here is the largest in this group at 100 lb, marketed as roughly a month of feed for about 18 hens. If you genuinely do not want to handle feed more than once a month, this is the unit built for that, and it works for chickens, ducks, geese and turkeys.
The included hole covers are the detail we liked most. Once the flock narrows down to the birds that actually use the feeder, you close the unused ports and stop paying to feed the bottom of the box.
We need to be straight about this one. It carries the lowest average rating of the ten at 4.0 stars, and the complaints are specific: predrilled holes that frequently do not align, a side panel that bulges if every screw is tightened, sharp burrs from cut screws, and a lid that sits with a gap once the hinge screws loosen.
Owners who get it assembled report liking the capacity and the fact that feed keeps moving toward the holes without daily handling. The assembly is the problem, not the design.
What you should know before buying
Put it together with gloves on and a file nearby. The misaligned holes mean you may skip a screw or two, and the metal burrs are a real cut hazard for whoever is doing the assembly as well as for the birds afterwards.
Check the lid hinge screws every few months. That single maintenance habit keeps the lid tight and the feed dry through sustained rain.
Where it falls short
The listed dimensions of 12 by 12 by 16 inches do not match the capacity claim, so treat the 100 lb figure as a headline number and check the physical footprint against your coop before ordering.
Some owners report heavy waste despite the no-waste port design, and the lid gap lets moisture in during prolonged rain, which is how feed ends up clumping and moulding.
9. Dogetgd 85 lb Ten-Port Feeder – Best Adjustable Port Layout for Poultry Variety
Automatic Chicken Feeder No Waste Metal Poultry Feeder Large Capacity 85lbs for Chickens, Geese, Ducks, Turkeys, Quails (10-Port)
85 lb capacity
4, 6 or 10 ports
27 x 22 x 4.9 in body
Rust-resistant metal
Pros
- Available in 4
- 6 and 10 port layouts
- Keeps feed dry through storms
- Stable base resists tipping
- Assembles in under half an hour
Cons
- Squirrels defeat the ports
- Surface rust develops over time
- Birds pull off the port hoods
The useful thing about this feeder is the port choice. The same body is available in 4, 6 and 10 port configurations, so you can match the port count to your flock instead of accepting whatever comes in the box. That matters more than the capacity figure on a mixed flock.
Owners report feed staying bone dry through storms in an unshaded run, and birds generally learning the ports within minutes. The base is stable enough that birds can climb on top without tipping it, and the wide top opening makes refilling fast.
At 85 lb, this covers a 50 to 80 bird flock with roughly fortnightly refills. The smooth metal surfaces hose clean easily, which is worth more in a humid climate than any sealed lid feature.
What it is not is a rodent-proof feeder. Squirrels get in and eat quickly, and that is the most consistent complaint across the reviews.
What you should know before buying
Pick the port count to match your birds. A flock of mostly standard hens is fine with six ports, while roosters, ducks and geese need the ten-port layout to avoid bullying at the feeder.
Assembly is straightforward and owners report under half an hour with all parts fitting correctly, which is not always true of the larger sheet-metal feeders in this price range.
Where it falls short
Not rodent-proof. If squirrels are the issue in your run, choose a treadle or a feeder with a locking lid instead.
Some units develop surface rust over a year or more of outdoor use, and once water enters, feed clumps. Repainting or protecting the seams at the start of each season heads that off.
10. HAYOHRT 85 lb Ten-Port Feeder – Best Gravity Feeder for Keeping Mice Out
HAYOHRT 85-120LBS Capacity Chicken Feeder No Waste 10-Ports Automatic Large Poultry Feeder with Latch & Handle for Chickens Bantams Pheasants Poultry Coop Weatherproof
85 lb stated capacity
10 ports with extended covers
23.6 x 11 x 24.8 in
Latching top lid
Pros
- Large measurable drop in feed waste
- Holds out mice and wild birds
- Closed lid keeps feed dry in storms
- Tools included for assembly
Cons
- Ports small for large-combed birds
- Sits low without blocking
- Sharp metal edges during assembly
This one has the most compelling waste story in the group. One owner reports dropping from 40 lb of feed every six days to 20 lb over three weeks after switching, and several owners bought a second unit. Owners also report holding out mice and wild birds over months of use with the lid closed.
The extended port covers keep rain out of the feed path, and the latching top lid deters weasels and raccoons. Stated capacity is 85 lb, though owners measuring it find roughly 100 lb in practice, feeding 10 to 14 birds for weeks at a time.
Note the naming on the box when you assemble it. The base plate has a front and a back and reversing them puts the ports on the wrong side, which is the most common first-build mistake with this unit. Tools and a screwdriver are included and a careful build takes about an hour.
The metal construction is described as more durable than plastic and it is marketed for harsh outdoor weather without rotting or corroding. Blunted edges protect both the person building it and the birds.
What you should know before buying
The lid has to be closed to keep mice out. Owners who leave it cracked report damp feed inside, so treat the latch as a daily habit rather than an occasional one.
If your birds include large-combed roosters, check port opening size before ordering. Small ports on a large-feeder body are the most common mismatch with tall birds.
Where it falls short
The overall height is low, and owners feeding turkeys and other large birds report having to raise it on blocks. That is easy to fix but worth knowing before the feeder arrives.
The lid may not sit perfectly flush until a corner is bent slightly with pliers, and it is harder to close when the feeder is not level on the ground.
Which Feeder Type Fits a Large Flock?
There are four types, and the right one depends less on flock size than on your two biggest problems: how much feed you are wasting and whether anything is eating it that is not a chicken.
Gravity tank feeders hold the most feed for the least money. Feed flows down as birds peck at it, and anti-scratch grids keep it on the ground side of the grate. They are open at the ports, so they do nothing against rodents or wild birds. Pick these for a sealed run and a flock you want to feed for a month at a time.
Hanging and wall-mounted feeders keep feed off the ground and stay dry in rain, but they scale badly. A 7 lb hanging feeder that works for 4 hens means you are hanging eight of them for 30 birds, and every one of them needs filling.
Treadle feeders open a door only while a bird is standing on the step. Between meals the feed is sealed, which is why they are the standard answer to rats. The trade is that they scale by unit count rather than by capacity, so a large flock means running several feeders, and each one costs more than a gravity tank.
App-controlled automatic feeders run on a timer or an app schedule, so the flock is fed on your schedule rather than theirs. They suit owners who travel. The honest limitation, repeated across owner reviews, is that the schedule is a timer rather than a remote control: you generally cannot open or close the door manually from your phone, and if the coop is out of WiFi range the app becomes decorative.
For most 30 to 50 bird flocks we would run one large gravity tank and one treadle side by side rather than going all-in on either.
Capacity Math: Sizing a Feeder to Your Flock
One hen eats roughly half a pound of feed a day, and that figure moves with weather, molt, breed, sex and how much pasture the flock has. Treat it as a planning number rather than a promise.
For 20 chickens, 20 birds multiplied by half a pound is 10 lb of feed a day, or about 70 lb a week. For 30 birds, that is 15 lb a day and roughly 105 lb a week. A 50 lb feeder therefore covers 20 hens for five days, and a 65 lb feeder stretches that to about six and a half days on the same flock. On a 30 bird flock those same numbers fall to just over three days for a 50 lb tank and about four days for a 65 lb unit, which is why large flocks run two feeders rather than one.
That arithmetic is why a 50 lb tank is the most common answer for 20 to 40 birds, and why anything above 85 lb only makes sense above 60 birds or for owners who genuinely refill monthly. Filling a 95 lb feeder on a 20 bird flock means feed sits long enough to attract pests and pick up moisture.
For layer hens specifically, the useful rule is that capacity sets the refill interval and port count sets the pecking order. Neither one alone is enough. A 95 lb feeder with three ports feeds a 20 bird flock for about nine days and produces the same scuffle at the front every evening.
How Many Feeders Do You Need for 20 Chickens?
For 20 chickens, plan on two feeders rather than one, and put them at opposite ends of the run.
The reason is pecking order. In a flock of 20, the bottom three or four birds get pushed off the feeder every time. Two stations mean the low-ranking birds can always find an empty one, and in practice that is where most of the bullying-at-the-feeder reports get solved.
For 20 chickens, two 30 to 50 lb feeders give you more than a week of feed and let you keep one station under a roofed area during a storm. Below 10 birds, a single small hanging feeder is the sensible answer and none of these large units are worth the space.
Check that a feeder does not depend on being full to stay stable. Units with adjustable legs or a wide base need to be levelled so the lid seats properly, which is the other half of the two-feeder setup.
Keeping Rats Out and Feed on the Ground
Rodents are the reason closed-lid feeders exist. Rats dig under a run and come up into an open trough overnight, and a 30 bird flock will quietly lose more feed to rats than it wastes to scratching.
Three things actually work. A treadle door means the feed is physically inaccessible when no bird is eating. A latchable metal lid stops animals levering the cover open. Spring-loaded ports on a gravity feeder mean nothing is exposed at the bottom of the box when the birds are finished.
Feed waste is a separate problem with separate fixes. Anti-scratch grids and trough grates keep feed from being raked onto the ground, anti-flick grilles stop beakfuls being thrown out of ports, angled ports stop feed rolling out, and port covers close off holes the flock does not use.
Fill a feeder to three quarters full rather than to the brim. Owners who report scratching problems usually filled to the top, and the extra few days of capacity is rarely worth the spilled feed.
Metal vs. Plastic Feeders in Cold and Humid Climates
Plastic feeders keep water out well and stay bone dry inside through thunderstorms, but the body can become brittle and crack after several seasons of outdoor exposure, especially through repeated freeze-thaw cycles.
Galvanized metal survives cold better and resists rust, but exposed metal in a coastal or salty yard will corrode unless it is scrubbed. In a humid climate, check seams and rivets each spring before the wet season starts.
The practical split is simple. Cold and freeze-thaw country favors galvanized steel. Mild, humid or coastal areas favor UV-protected plastic, with a routine spring inspection for cracks at the seams.
Frequently Asked Questions
What is the best large chicken feeder for a flock of chickens?
For most flocks of 30 to 50 birds, the best large chicken feeder is a 50 to 65 lb gravity tank with six or more ports, a rain hood and a locking lid. It holds several days of feed, keeps pellets and crumbles dry and cuts scratched-out waste. If rodents are a problem, choose a treadle feeder instead, because only a treadle seals feed between meals.
How many feeders should you have for 20 chickens?
Two feeders for 20 chickens, placed at opposite ends of the run. Twenty hens eat roughly 10 lb of feed a day, so two 30 to 50 lb feeders cover more than a week. Running two stations also breaks up pecking order, because the lowest-ranking birds are not forced to compete at the same feeder every evening.
What size chicken feeder do I need for 20 chickens?
A 50 lb feeder suits 20 chickens for about five days between refills, and a 65 lb unit stretches that to roughly six and a half days. Because a hen eats about half a pound of feed daily, 20 birds need around 70 lb a week. Any feeder under 30 lb will need filling every two or three days at that flock size.
What is the best automatic feeder for a chicken farm?
For a large flock, a high-capacity gravity feeder beats a small automatic one, because the value is in feed storage rather than a motor. Automatic and app-controlled units make sense when you are away for days, since they open on a schedule. Check whether the schedule is a timer only, because most models cannot be opened or closed manually from an app.
How do I keep rats out of my chicken feeder?
Use a treadle feeder, a latchable metal lid, or spring-loaded ports. Rats dig under a run and reach any open trough, so an exposed gravity feeder will be emptied overnight. Owners who switch to a treadle report the problem stops, provided the birds actually learned to use the step, and the lid is closed when the flock is not eating.
Can chicks use an automatic chicken feeder?
Rarely. Most large-capacity feeders are built for adult birds and list chicks as unsuitable. RentACoop units explicitly exclude chicks, and treadle feeders require a minimum bird weight before the step will move. Chicks also peck feed out of ports sized for full-size birds and waste it, so use a separate chick feeder for the first weeks.
Conclusion
For most people keeping 30 or more birds, the OverEZ 50 lb feeder is the one we would buy first: it holds a serious amount of feed, it keeps rain out of the channel, and it cleans on the ground without tools. Pair it with a treadle unit if rodents are part of your problem, and stop there rather than filling the run with feeders.
If you are above 60 birds, move up to a 65 lb or larger unit and count ports as carefully as pounds. If you feed crumble, set the flow plate before you fill. And if you travel, remember that most app-controlled feeders run a timer rather than a remote control, so test the schedule before you rely on it.
Whichever way you go, size the feeder with the math rather than the marketing, run at least two stations, and keep the lid shut. That is how the best chicken feeders for large flocks actually save feed, rather than just holding it.