The Livestock Conservancy maintains a list of Heritage Chicken breeders in its Breeders Directory. You can visit the online directory or if you wish to receive a printed copy please consider joining the Conservancy.
Some Heritage Chickens can be obtained from hatcheries. Below is a downloadable list of chicken hatcheries. The Livestock Conservancy encourages contacting the hatchery directly to determine the breeds of birds available and to determine whether these are in fact Heritage Chickens.
Download Hatchery List (56 KB PDF)