Gallus gallus domesticus
✨ Fun Fact
Jersey Giant roosters can weigh more than 6 kg — heavier than a regulation bowling ball. The breed was specifically created to replace the turkey as an American holiday table bird, and while it never achieved that goal commercially (their slow growth made them uneconomical), they remain the undisputed giants of the domestic chicken world.
The largest standard chicken breed in the world, developed in Burlington County, New Jersey in the 1870s–1880s by brothers John and Thomas Black with the explicit goal of replacing the turkey as America's Thanksgiving table bird. Roosters commonly reach 5–6 kg and stand exceptionally tall, with hens also reaching impressive market weights. Despite their enormous size, Jersey Giants are notably gentle, calm, and good-natured. Admitted to the APA Standard in 1922. Their slow growth rate (6+ months to reach full size) means they are kept primarily as heritage and exhibition birds today rather than for commercial production.
🏷️ Breed
Jersey Giant
💭 Temperament
Calm, gentle, friendly, patient, docile, good with children
📏 Size
Large (5.0-5.9 kg)
⏳ Lifespan
5-8 years
🎨 Colors
Black (original), white, blue
🌍 Origin
USA — Burlington County, New Jersey; developed by Black brothers, 1870s–1880s
🏠 Habitat
Large free-range or spacious enclosed run; sturdy housing required for their size
🍽️ Diet
High-protein grower and layer pellets; good forager on pasture
🎯 Purpose
Meat
🥚 Egg Colour
Brown
👑 Comb Type
Single
🏅 EE Class
Large Fowl