Updated September 26, 2026. This page used to wander from rooster-versus-hen into showing, butchering and selling eggs, and it got the one question it was named for mostly by feel. I’ve cut it back to that question and to what the extension services and the hatcheries that breed Buff Orpingtons actually say.
The short answer: you can’t tell a Buff Orpington chick’s sex by looking at it. They all hatch looking alike, and no color trick sorts them. From about 4 to 6 weeks the cockerels’ combs and wattles grow bigger and redder than their sisters’. Between about 10 and 18 weeks the rooster grows long, pointed neck and saddle feathers that a hen never gets. Grown, he’s the bigger bird, about 10 pounds to her 8.
Why Buffs make you wait
Some chicks come with an answer printed on them. Black and red sex-links hatch in different colors by sex, and a purebred Barred Rock chick’s head spot is a decent guess. A Buff Orpington gives you nothing like that. Mississippi State Extension says most breeds don’t carry the traits that make feather sexing possible either: for most strains the “feathering of both sexes appear identical.” Vent sexing works on any chick, but that’s a trained hatchery worker’s job, not yours.
So with a straight-run box of Buffs from the feed store, you raise them and you watch. Mississippi State’s advice for small flock owners is exactly that, and it says the signs “can usually be performed after chicks attain 4 to 6 weeks of age.”
The signs, in the order they show up
Comb and wattles, 4 to 6 weeks on. Mississippi State: “In males, the combs and wattles will become larger than those on females and the head will become more angular and masculine looking.” Line your Buffs up against each other. The cockerels’ combs pull ahead while the pullets’ stay small.
Neck and saddle feathers, about 10 to 18 weeks. This is the one to trust. The University of Kentucky: “The males have longer, more pointed, and narrower hackle feathers (located on the neck). The hackle feathers typically have a rounded oval shape in females.” And the clincher: “only the males have saddle feathers.” Meyer Hatchery, which sells Buffs, says it can “barely begin to see” those feathers on 10 to 12 week old roosters, and one bird it was unsure of at 14 weeks “clearly shows the hackles and saddles” at 18. On a fluffy breed, part the feathers in front of the tail and look for the long, narrow, shiny ones.
Crowing, whenever it comes. Kentucky: the males switch from chirping “to attempting to crow.” It’s a strong sign, not a certain one. Meyer: “A hen can mimic a rooster’s crowing, especially if there is not a rooster present and a dominant hen decides she will be the flock leader.”
If you’d rather not keep all of that in your head, the hen or rooster checker on this site takes your bird’s age and what you can see, and tells you how far each sign can be trusted at that age.
The grown birds
Size. The Livestock Conservancy: “Males typically weigh 10 pounds and females 8 pounds.” McMurray Hatchery lists the same 10 and 8. A Buff rooster is a lot of bird, and he needs a coop and a roost built for it.
Temper. This is where Buffs earn their reputation. The Livestock Conservancy calls the breed’s temperament “Calm, friendly disposition.” Meyer says friendly and calm, Cackle says docile, and McMurray rates the disposition its best. That’s the breed, and it’s mostly the hens you’ll handle. A rooster of any breed is still a rooster, so learn how yours acts before you turn your back on him in the run.
What the hen does: lay, and sit
She lays brown eggs, and she’s more than willing to sit on them. On eggs, the hatcheries give different numbers:
- Meyer Hatchery: 4 to 6 eggs a week, starting at 20 to 24 weeks, a bit later than a Rhode Island Red.
- Cackle Hatchery: 150 to 280 eggs a year, which Cackle labels an estimate.
- McMurray Hatchery: rates production “good”, without a yearly number.
On broodiness the three agree, which doesn’t happen often. Meyer says yes, Cackle calls them setters, and McMurray says “extremely likely.” That’s the real rooster-or-hen decision with this breed. A Buff hen will raise chicks for you, and a Buff rooster is what makes her eggs worth sitting on. If you only want eggs for the kitchen, you don’t need him. Hens lay without a rooster, and I wrote more about laying without a rooster here.
Where Buffs came from
The Livestock Conservancy tells the story. William Cook, a coachman in Orpington, England, bred the first Orpingtons and introduced them in 1886. He released several colors, and the Buff was admitted to the American Poultry Association’s standard in 1902. American farmers liked Buffs for the table and for a color different from most general-purpose birds. Cold-hardy, too. McMurray rates their cold tolerance excellent, which suits a winter coop.
Bought as pullets and one is crowing?
Hatcheries sex day-old chicks by hand and don’t promise to be perfect. Murray McMurray Hatchery: “We guarantee 90% accuracy on all sexed poultry.” One cockerel in a box of ten “pullets” is still inside that. Its promise for a wrong one is to “refund your money, replace your birds, or credit your account,” so make the call.
Sources
- Mississippi State University Extension: Sexing of day-old chicks: why most breeds can’t be sexed at hatch; combs and wattles after 4 to 6 weeks.
- poultry.extension.org: Sexing Day-Old Chicks (Dr. Jacquie Jacob, University of Kentucky): hackle and saddle feathers; crowing.
- Meyer Hatchery: What to Look for in Determining Gender in Young Chickens (March 2018): feathers at 10 to 18 weeks; hens that crow.
- The Livestock Conservancy: Orpington Chicken: weights, temperament, William Cook and the 1902 Buff standard.
- Murray McMurray Hatchery: Buff Orpingtons, Meyer Hatchery: Buff Orpington and Cackle Hatchery: Buff Orpington: weights, eggs, laying age, broodiness, temperament, cold tolerance.
- Murray McMurray Hatchery: The McMurray Difference: the 90% sexing guarantee.
Sources checked September 26, 2026. I keep chickens; I’m not a veterinarian.
