Table 1.

Twenty recognized grouse species, their population estimate, population status, and population trend

Common name	Scientific name	Pop. estimatea	Statusb	Trendb
Black Grousec	Lyrurus tetrix	27,500,000	Least concern	Decreasing
Black‐billed Capercaillie	Tetrao urogalloides	<550,000	Least concern	Decreasing
Western Capercaillie	Tetrao urogallus	7,500,000	Least concern	Decreasing
Caucasian Black Grouse	Lyrurus mlokosiewiczi	<46,600	Near threatened	Decreasing
Chinese Grouse	Bonasa sewerzowi	Not quantified	Near threatened	Decreasing
Hazel Grouse	Bonasa bonasia	27,500,000	Least concern	Decreasing
Ruffed Grouse	Bonasa umbellus	Not quantified	Least concern	Decreasing
Dusky Grouse	Dendragapus obscurus	3,000,000	Least concern	Decreasing
Sooty Grouse	Dendragapus fuliginosus	Not quantified	Least concern	Decreasing
Greater Prairie‐Chickenc	Tympanuchus cupido	<700,000	Vulnerable	Decreasing
Lesser Prairie‐Chickenc	Tympanuchus pallidicinctus	30,000	Vulnerable	Decreasing
Sharp‐tailed Grousec	Tympanuchus phasianellus	Not quantified	Least concern	Decreasing
Greater Sage‐Grousec	Centrocercus urophasianus	<150,000	Near threatened	Decreasing
Gunnison Sage‐Grousec	Centrocercus minimus	<2,500	Endangered	Decreasing
White‐tailed Ptarmigan	Lagopus leucura	Not quantified	Least concern	Decreasing
Willow Ptarmiganc	Lagopus lagopus	>40,000,000	Least concern	Decreasing
Rock Ptarmigan	Lagopus muta	>8,000,000	Least concern	Decreasing
Siberian Grouse	Falcipennis falcipennis	Not quantified	Near threatened	Decreasing
Spruce Grouse	Falcipennis canadensis	Not quantified	Least concern	Stable
Franklin's Grouse	Falcipennis franklinii	Not quantified	Least concern	Stable

^aWe report the mid‐point of population estimates.

^bAll status, trend, and population estimates were gathered from BirdLife International 2016.

^cSpecies that inhabit rangelands.