Buff Orpington: Brown Eggs, Weights, and Temperament
Sourced Buff Orpington records for brown egg color, annual egg estimates, mature weights, comb type, climate tolerance, APA class, breed type, and maturity.

Egg production estimates by source
Each egg is 20 eggs/year. Solid = published minimum; outline = rest of the range. Scale goes to 320.
Mature weights by source
Quick facts
| Attribute | Value | Source |
|---|---|---|
| Eggs Per Year | 150–280 eggs/year |
|
| 220 eggs/year |
| |
| Egg Color | brown |
|
| Hen Weight Lb | 8 lb |
|
| Rooster Weight Lb | 10 lb |
|
| Comb Type | single |
|
| Temperament | docile |
|
| Apa Class | English |
|
| Breed Type | heritage |
|
| Climate Tolerance | excellent |
|
| Maturity Weeks | 20 weeks |
|
Overview
The Buff Orpington is a heritage brown-egg breed recognized by the American Poultry Association in the English class. Cackle Hatchery's Buff Orpington page records Poultry Show Class as English Class and lists the breed's Purpose and Type as Dual Purpose, Primary production. McMurray Hatchery's Buff Orpington spec table records the breed under its Heritage Breed field. The retained records describe what the hatcheries list for this variety; they do not describe every Buff Orpington flock, every management style, or every regional strain.
Egg records
Cackle Hatchery's Buff Orpington page lists Egg Shell Color as Light Brown and Egg Production as an estimated 150–280 eggs per year. McMurray Hatchery's Buff Orpington spec table independently records Egg Color as brown. Hoover's Hatchery estimates 220 Medium Brown Eggs/Year for the Buff variety. This page stores the three records separately rather than computing an average, headline, or range across sources.
The retained evidence supports the three displayed annual-egg records and the brown shell-color label. It does not establish a weekly rate, a lifetime total, a comparison with another breed, or a per-dozen feed cost. Those subjects are deliberately absent rather than inferred from the two numeric values.
Mature weight and laying maturity
Cackle Hatchery's Buff Orpington Weights block lists hens at 8 lbs and roosters at 10 lbs. McMurray Hatchery's Female Mature Weight field independently records 8 lbs, and its Male Mature Weight field records 10 lbs. The two hatcheries' numeric values agree; the quick-facts table preserves both records rather than collapsing them into one source.
McMurray's Buff Orpington Weeks to Maturity field records 20 weeks for the Buff variety. This page stores the explicit 20-week value as the maturity fact and does not convert it into a month estimate, because doing so would add a calculation that the source did not publish. The retained evidence does not establish a body-size category, feed use, space requirement, carcass value, or growth curve; those subjects are deliberately absent rather than inferred from the four retained numeric values.

Other sourced fields
McMurray's Buff Orpington spec table records Comb Type as single, and Hoover's Hatchery independently records Comb Type as Single Comb. Cackle's Temperament field records Docile, and Hoover's Hatchery independently describes the breed's temperament as Docile, Calm, Gentle, Friendly. The four records agree on comb type and on the docile temperament word.
McMurray's Cold Tolerance field records excellent for the Buff variety. This page reports that exact word and does not extend it into handling, housing, or seasonal-care instructions. The retained fact ledger does not support broader climate claims, biosecurity advice, or husbandry recommendations, so those subjects are deliberately absent rather than inferred from a single cold-tolerance rating.
Related published pages
Flock size calculator
Enter your household size and target egg output. The calculator returns the flock size and space you'll need based on the productivity tier you pick.
Hens needed: 2
(4 × 2 eggs/week / 5 eggs/hen/week, rounded up)
Coop space: 4 sq ft (2 sq ft/hen × 2 hens)
Run space: 20 sq ft (10 sq ft/hen × 2 hens)
These are minimums. Most backyard keepers give 1.5–2× this much space, especially for run area, to allow range rotation and reduce feather-picking behavior.
Where these numbers come from
- Low tier 3 eggs/hen/week — Egg Production: 150 – 280 eggs per year www.cacklehatchery.com
- Medium tier 5 eggs/hen/week — Egg Production: 200-280 eggs per year www.cacklehatchery.com
- High tier 6 eggs/hen/week — Cackle lists White Leghorns as producing large to extra-large white eggs, with an estimated 280–320 eggs per year. www.cacklehatchery.com
- Coop 2 sq ft + run 10 sq ft per large chicken (minimum) — A small bantam chicken needs a minimum of 1 square foot of indoor space and 4 square feet of outdoor space, while a large chicken needs a minimum of 2 square feet of indoor space and 10 square feet of outdoor space. extension.msstate.edu
Frequently asked questions
What annual egg estimates do the retained Buff Orpington sources give?
Cackle Hatchery estimates 150–280 eggs per year, and Hoover's Hatchery lists 220 Medium Brown Eggs/Year. Both records are retained verbatim on this page.
What egg color do the retained Buff Orpington records list?
Cackle Hatchery records Egg Shell Color as Light Brown, and McMurray Hatchery independently records Egg Color as brown in its Buff Orpington spec table.
What mature weights do the retained Buff Orpington sources list?
Both Cackle Hatchery and McMurray Hatchery list hens at 8 lbs and roosters at 10 lbs for the Buff variety.
What maturity value does the retained McMurray spec table record?
McMurray's Buff Orpington Weeks to Maturity field records 20 weeks.
What comb type and temperament do the retained Buff Orpington sources list?
McMurray Hatchery records Comb Type as single and Hoover's Hatchery independently records Comb Type as Single Comb. Cackle Hatchery records Temperament as Docile, and Hoover's Hatchery independently lists Temperament as Docile, Calm, Gentle, Friendly.
What APA class and breed type do the retained Buff Orpington sources list?
Cackle Hatchery records Poultry Show Class as English Class, and McMurray Hatchery's Buff Orpington spec table records the breed as a heritage breed.
What cold-tolerance rating does the retained McMurray spec table record?
McMurray's Buff Orpington Cold Tolerance field records excellent for the Buff variety.