- 16.9 in
- 24.7–42.3 oz
- Poule des prairies (French)
- The extinct Heath Hen was a distinct subspecies of the Greater Prairie-Chicken that was found in the scrub oakland and fire-created blueberry barrens of the East Coast. The last Heath Hens were confined to the island of Martha's Vineyard, off the coast of Massachusetts, where they went extinct in 1932.
Open prairie and oak savannah.
Leaves, seeds, buds, cultivated grains, and insects.
- Condition at Hatching
- Downy and able to follow mother.
Multiple males display at group display site, known as a lek.
Greater Prairie-Chicken populations have been stable, and even increased between 1966 and 2014, according to the North American Breeding Bird Survey. Partners in Flight estimates a global breeding population of 400,00, with 100% living in the U.S. Though the species appears to be doing better, decades of decline still puts it at risk, and it is listed as Vulnerable on the IUCN Red List of Threatened Species. Greater Prairie-Chicken is a U.S.-Canada Stewardship speices, as well as a Tri-National Concern species. The species rates a 16 out of 20 on the Continental Concern Score. Greater Prairie-Chicken are on the 2014 State of the Birds Watch List, which lists bird species that are at risk of becoming threatened or endangered without conservation action. The Eastern subspecies, known as the Heath Hen, went extinct in 1932. The Texas form, the Attwater's Prairie-Chicken, is critically endangered and at severe risk of extinction. This species is vulnerable to loss of prairie habitat through conversion to cropland. Domestic grazing animals also modify this birds' prairie habitat. Habitat fragmentation threatens this species, as does possible competition with the introduced non-native Ring-necked Pheasant.