Buff Orpington vs Barred Rock: One of Them Wants to Sit

Put a Buff Orpington and a Barred Rock on a scale and they’re about half a pound apart. Their egg counts overlap too, so the question of which one lays more mostly comes down to the hatchery’s line. The real difference is what a hen does once she decides to sit. Every source I read calls the Buff Orpington broody. On the Barred Rock, they split. If you’re choosing between them, that one trait shapes your egg basket, and your odds of chicks without an incubator, more than anything else you’ll read here.

I rewrote this page from 17 sources, all listed at the bottom. The weights and egg counts come from The Livestock Conservancy and the breed pages of three hatcheries, all read on October 30, 2026. The University of Georgia covers temperament and how to break a broody hen. Jacquie Jacob at the University of Kentucky covers chick sexing and frostbite, and a Tennessee 4-H breed sheet describes the chicks.

This page used to open with a story. The writer said “I’ll never forget the day I brought home my first chicks”: “six adorable Buff Orpington chicks from the feed store”, bought “without doing much research on the breed”. (“Rookie mistake, I know!”) They turned out “more pet than producer”. Then came Barred Rocks that laid “sometimes 6-7 eggs per hen per week!”, and “I was never short on eggs again”. I can’t vouch for any of it, so it’s gone.

The facts needed more work. The old page gave Orpingtons “small combs and wattles that won’t suffer from frostbite” and said “Barred Rocks don’t tolerate cold quite as well”. Both breeds have the same single comb, and McMurray rates both for cold as “excellent”. It promised “You won’t have issues with Barred Rock hens going broody”, but two of the hatcheries I read mark the Rock as broody. It put Orpingtons at “around 3-4 eggs per week” and Rocks at “up to 5-6 brown eggs per week”, while Meyer gives both breeds the same 4 to 6. And its weights ran low: Orpington hens at “7-8 pounds”, Rock hens “reaching 6-7 pounds at maturity”. Four sources say 8 and 7.5.

Then there were numbers no source I found backs up, so they’re out. That’s the “16-18% protein” feed, “8-10 square feet per bird” for Orpingtons and “1 square foot per chick”. It’s also brooders turned “down to 70°F by week 5”, a coop at “around $300” and “$25+ monthly” for feed and bedding. The “payback period on hens” of “9-12 months” went, and so did roosters crowing at “4-6 months”. I also cut the Orpingtons “prone to weight gain”, Rock chicks that “may need slightly higher and more consistent heat”, and Buff roosters with a “lower-pitched, shorter call”. The comparison chart repeated all of it, so the chart’s gone too.

A word on the photos. All eight are by Tamsin Cooper, whose Flickr profile puts her in Mayenne, France, and she put them in the public domain (CC0). Her buff birds are buff, but she never names their breed, so I don’t either. I couldn’t find a free Barred Rock photo that isn’t already on this site, so for real Rocks, see the Barred Rock posts linked below.

The short version.

• They’re half a pound apart. Orpington hens run about 8 pounds and Rock hens about 7.5, and the loose Orpington feathering makes the gap look bigger than it is.
• The egg counts overlap. Cackle’s estimates run 150 to 280 a year for its Orpingtons and 200 to 220 for its Rocks.
• Broodiness is the big split. Every source calls the Orpington broody, and the sources argue about the Rock.
• A broody spell costs about 8 to 10 eggs, says the University of Georgia. A hatch takes about 21 days.
• A purebred Barred Rock chick has a white head spot that’s about 80% accurate for sexing. A buff chick gives you nothing to go on.
• Both have single combs, and McMurray rates both “excellent” in the cold.
• Both are calm. The docile Orpington is the one that gets picked on.

Half a Pound Apart on the Scale

On size, the sources agree almost to the ounce. The Livestock Conservancy says Orpington “Males typically weigh 10 pounds and females 8 pounds.” For the Plymouth Rock, it gives “Male 9.5 lbs. / Female 7.5 lbs”. The three hatcheries I read print the same four weights. So if you set an Orpington hen next to a Rock hen, you’re looking at half a pound, and the roosters are half a pound apart too.

Young birds tell the same story. Cackle lists a Buff Orpington pullet at 7 pounds and a cockerel at 8½. Its Barred Rock pullet is 6 pounds and its cockerel 8.

So why does the Orpington look so much bigger? Feathers. Meyer says they’re called “Big Buffs” because they’re “loosely feathered and appear to be heavier than their true weight.” The Tennessee sheet says the same thing. McMurray even rates bird size “extra large” for the Orpington and “large” for the Rock, which is how they look on the roost. If you’re sizing up birds at a swap, don’t trust the fluff.

The bigger difference for the table is the skin. McMurray lists white skin on the Orpington and yellow on the Rock, and that’s no accident. The Conservancy says American breeds reaching England were looked down on for their yellow skin, “the British preferring white skin”. So William Cook started crossing “Minorca roosters with Black Plymouth Rock hens”, then bred in Langshans. He showed his new breed in 1886. Yes, the Orpington has Plymouth Rock in its family tree. Illinois Extension adds that the Buff came from “crosses other than those which were used to make up the Black Orpington.”

McMurray suggests butchering Buff Orpingtons “around 16-20 weeks of age”. Its Barred Rock males “would be ready for butcher after 20 weeks of age.” If you want the full Orpington-and-Rock comparison in buff, I covered that in Buff Orpington vs Buff Rock.

The Egg Counts Overlap

Eggs are where the old page drew its sharpest line. You’ll see the sources blur it most, too.

For the Barred Rock, the Conservancy says “their rate of lay is around 200 large, brown eggs per year”. McMurray’s quick stats say 225 a year, and its answers page says “about 220-280 eggs a year”. Cackle lists 200 to 220 and calls its numbers “estimates only”. The Tennessee sheet says about 240.

For the Buff Orpington, Cackle’s estimate runs from 150 to 280 eggs a year. The Tennessee sheet says about 200. McMurray won’t give a number at all: “There are too many variables depending on environment and care of the birds.” And Meyer gives both breeds the same rate, 4 to 6 eggs a week.

So the Rock’s ranges sit inside the Orpington’s. If you only read the ratings, you’d say the Rock leans ahead. McMurray rates its egg production “better” and the Orpington’s “good”. On McMurray’s own five-step scale, that’s one step apart, not a different league.

The Rock may start sooner, though. Meyer lists laying at 16 to 20 weeks for its Barred Rocks and 20 to 24 weeks for its Buff Orpingtons. McMurray says Orpingtons “start laying at 5-7 months of age.”

Egg size is pretty much a wash. Meyer marks both L/XL. The Conservancy calls Orpington eggs “Large to Extra Large” and Rock eggs large, while McMurray lists its Rock eggs as “medium”. Both lay brown eggs.

My take: the line matters more than the breed name. Ask the hatchery what its own birds lay. Then plug that into our egg production calculator to see what a flock your size might give you. And if you’re wondering why there’s a “Barred Rock” at all, it’s one color of the Plymouth Rock, which I explain in Barred Rock vs Plymouth Rock.

The Real Split: One of Them Wants to Sit

This is the part that’ll shape your egg basket most.

Every source I read calls the Buff Orpington broody. McMurray rates it “extremely likely” to sit and answers, “Yes, they are excellent setters.” Meyer calls it “very broody”. Cackle says “Orpington hens often go broody and can make excellent mothers for baby chicks.” UGA says “The hens are excellent mothers”, and McMurray’s blog names Buff Orpingtons among the breeds that “will go broody every so often”.

On the Barred Rock, the sources disagree. McMurray rates it “not very likely” to sit and says “Barred Rocks are not considered setters.” UGA says Rock hens are “good mothers but do not brood frequently.” But the Conservancy says “Hens are usually good sitters and mothers”, Meyer marks its Rocks “Broody: Yes”, and Cackle lists them as a “Setter”. The Tennessee sheet calls them broody too.

So the old promise of no broody Rocks doesn’t hold. By most accounts a Rock is less likely to sit than an Orpington. It depends on the line, though, so expect the odd broody Rock.

So why care? A broody hen stops laying. UGA’s numbers: “egg production is reduced by 8 to 10 eggs each time a hen becomes broody.” Cackle puts it plainly, too: “broodiness can also pause egg laying”. If a hen goes broody twice in a season, that’s 16 to 20 eggs gone (my arithmetic).

That’s the trade. A broody Orpington costs you eggs. In return, she’ll hatch and raise chicks for you, no incubator needed.

If She Goes Broody: Break It or Let Her Hatch

So a hen won’t leave the nest box, and she’s not laying. You’ve got two choices.

To break her, the sources agree on the idea: get her off the nest and somewhere that’s no fun to sit. UGA says to hold broody hens in a separate pen “for 7 to 10 days”, with light “for a minimum of 12 hours per day”. It adds, “Using pens or coops with wire floors will also discourage broody behavior.” Cackle’s version is a “separate wire cage in light” for 3 to 5 days. McMurray’s blog says to use a well-lit cage “that has a wire mesh bottom made out of hardware cloth”. You still give her food and water. “Usually within a few days, she will cease to be broody,” it says, and then you can put her back with the flock.

To let her hatch, you need fertile eggs. No rooster, no chicks. McMurray’s blog says you might get fertile eggs from someone nearby and swap them in at night, “so that you do not disturb the hen any more than necessary.” Give her a quiet spot away from the others.

Then settle in. “It takes about 21 days for a hen to hatch eggs,” McMurray says, and she’ll leave the nest only for a few quick trips to eat and drink. A small feeder and waterer just for her helps. Have chick starter on hand for the hatch. As McMurray puts it, “It will be fine for the broody hen, too.”

Honestly, this is where the Orpington earns its keep. If chicks are the goal, a reliable broody is worth a few lost eggs. If eggs are the goal, a hen that rarely sits is the easier bird. And if you’ll keep a rooster for those fertile eggs, Buff Orpington rooster vs hen covers what to expect from him.

Chicks: Only the Rock Gives You a Hint

When you open the chick box, you’ll see they look nothing alike. The Tennessee sheet says “Buff Orpington chicks are light buff or straw colored”. Barred Rock chicks “are black with a white spot on top of the head.”

That head spot is a handy clue. Jacquie Jacob explains that in purebred Barred Rock chicks, “At hatch, males have a large white spot. The spot is much smaller and narrower in females.” She puts it at “about 80% accurate”. So it gives you a good guess, not a promise. McMurray says plainly that its Barred Rocks are “not sex linked or auto sexing”.

A buff chick gives you nothing like that. You either wait until the birds grow up, or you trust the hatchery’s sexing. Cackle lists its accuracy at 85 to 90 percent for both breeds. If you’ve got young birds and you’re not sure, try our rooster or hen checker.

Barring also makes sex-links. Jacob says that “When a non-barred male is crossed with a barred female”, the daughters come out non-barred and the sons barred, with a white head spot at hatch. “Crossing a barred male with a non-barred female will not work.” The usual fathers are Rhode Island Reds or New Hampshires, and Rhode Island Red vs Buff Orpington compares that Red with the Orpington. A Buff Orpington rooster isn’t barred either, so in theory he fits the father’s role. None of my sources names that exact cross, though, so don’t count on it until you’ve seen it hatch.

Cold Winters and Hot Summers

Both breeds wear a single comb. McMurray and the Tennessee sheet say so for the Orpington, and Cackle describes the Rock’s “single upright comb”. So the old page’s “small combs” on the Orpington were wrong. Neither breed gets the frostbite edge of a low comb. For a barred bird that does, see Barred Rock vs Dominique.

For cold, McMurray rates both breeds “excellent”. The Conservancy says “Rocks are cold-hardy due to their early feathering”. UGA says Orpington hens “can tolerate cold temperatures”.

If you worry about frostbite, look at your coop before the breed. Jacob says it turns into a problem at “extremely low temperatures (single digits and below)”. And “Frostbite is more likely to occur during the nighttime hours in a cold, poorly ventilated coop with damp bedding.” Roosters get it most “because they typically have larger combs and wattles”. As for petroleum jelly, she writes, “For mild freezing, petroleum jelly helps, but coop management is the real key.” With deep litter and a water warmer, she says, flocks can do well below zero “with no external heat required.”

Not sure where your winter falls? Our how cold is too cold checker walks you through it.

If you’re somewhere hot, McMurray rates both breeds “good” for heat. Cackle lists its production Barred Rock among its hot-weather chickens. For the Orpington, Cackle says its big body and full feathering make shade and airflow “especially important during hot weather”, along with cool water. So in a hot summer, I’d call the Rock the easier bird. In a cold winter, it’s a tie.

Temperament, and Who Gets Picked On

Both are easy birds to live with. McMurray gives the Orpington’s disposition its top mark, “best”. The Rock gets “better”. UGA says you’ll find Orpingtons docile and “easily handled”. Rocks, it says, “are friendly and are easily handled.” The Conservancy says Rocks “get along with other breeds” and “will follow their people around”. It calls them “a good choice for a first-time chicken owner”.

Cackle splits them by energy: “Docile” for the Orpington and “Active” for the Rock. It says Orpingtons “often tolerate confinement better than more active breeds”, given enough space and clean bedding. On free range, they “may not range as actively as lighter breeds.” So a small coop and run suits the Orpington fine. For grown birds of either breed, Cackle recommends “about 4 square feet for every standard or large fowl chicken” in the pen or coop.

But a sweet bird has a catch. UGA says the Orpington is so docile that it’s “easily bullied”. If you mix Orpingtons with pushier breeds, keep an eye on who’s getting pecked, and give them room.

Roosters are another matter. Cackle says Barred Rock “Roosters may need more careful handling than hens, especially around young children.” Any rooster is worth watching around small kids, so plan for that before you pick a straight-run box at the feed store.

Which One I’d Pick

Both are true dual-purpose birds. The Merck Veterinary Manual lists Plymouth Rocks and Orpingtons among breeds that are “reasonably good for both egg and meat production”. Both are calm birds that handle cold well, and they’re close in size. So you can pick by what you want from the flock.

I’d get Buff Orpingtons if you want chicks without an incubator, or a gentle bird the kids can carry around. Expect broody spells, and fewer eggs while they last.

I’d get Barred Rocks if eggs come first or your summers run hot. Ask the hatchery about broodiness in its own line, because the sources don’t agree on the Rock.

Or keep a few of each. The Orpington can hatch the next batch while the Rocks keep laying. Still torn? Our chicken breed chart lets you filter and compare breeds side by side. If a Rock wins, Barred Rock vs Wyandotte is a good next read.

Sources

• The Livestock Conservancy: Orpington Chicken.
• The Livestock Conservancy: Plymouth Rock Chicken.
• McMurray Hatchery: Buff Orpingtons.
• McMurray Hatchery: Barred Rocks.
• McMurray Hatchery blog: What Is a Broody Hen and How to Deal With It.
• Meyer Hatchery: Buff Orpington chicks.
• Meyer Hatchery: Barred Plymouth Rock chicks.
• Cackle Hatchery: Buff Orpington Chicken.
• Cackle Hatchery: Barred Rock Chicken.
• Cackle Hatchery: FAQs.
• University of Georgia: Which Breed of Chicken Should I Put in My Backyard Flock? (PDF).
• University of Georgia: Controlling Broodiness in Backyard Flocks (PDF).
• University of Tennessee Extension, Roane County 4-H: Learn About Your Chicken Breed Options (PDF).
• Jacquie Jacob, University of Kentucky: Sexing Day-Old Chicks.
• Jacquie Jacob, University of Kentucky: Frostbite in Chickens.
• University of Illinois Extension: History of the Breeds.
• Merck Veterinary Manual: Overview of Backyard Poultry.

Sources checked October 30, 2026. Weights and egg counts are each source’s own, and the broody-egg math is mine. We aren’t vets. If a bird looks sick, call a vet who sees poultry.

Related read: How to Raise Chickens for Eggs — Instant PDF download. Secure checkout by Stripe