Centrocercus minimus
The Gunnison Grouse, *Centrocercus minimus*, is a captivating and highly specialized bird, distinguished by its strong reliance on sagebrush ecosystems. As the smallest of the sage-grouse species, males measure approximately 44-51 cm in length and weigh 1.8-2.3 kg, while females are smaller at 31-36 cm and 1.0-1.4 kg. Their plumage is a cryptic blend of mottled brown, black, and gray, providing excellent camouflage within their sagebrush habitat. Distinctive field marks include the males' imp...
Found exclusively in dense sagebrush-dominated ecosystems, primarily on high-desert plateaus and intermountain basins, typically at elevations ranging from 1,800 to 3,000 meters.
Primarily herbivorous, feeding almost exclusively on sagebrush leaves, particularly in winter, supplemented with forbs, insects (especially grasshoppers, beetles) and some berries during spring and summer, which are crucial for chick development.
Gunnison Grouse are diurnal, spending their days foraging and typically roosting in dense sagebrush clumps to evade predators and shelter from weather. Their foraging strategy primarily involves browsing on sagebrush leaves, particularly in winter, supplemented by forbs and insects during warmer ...
The Gunnison Grouse exhibits an extremely restricted and fragmented geographic distribution, confined to southwestern Colorado and southeastern Utah, USA. Its breeding and wintering ranges largely overlap, as the species undertakes only short-distance, often elevational, movements in response to ...
Endangered
- The Gunnison Grouse was only recognized as a distinct species in 2000, after being considered a subspecies of the Greater Sage-Grouse for decades. - Males possess large, inflatable yellow air sacs on their chests that produce a booming sound during their elaborate courtship display. - Their sur...