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The genus Tetrao was introduced in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae. [1] The genus name is the Latin word for a game bird, probably a black grouse. [2] The black grouse was included by Linnaeus in the genus Tetrao but is now placed in the genus Lyrurus.
The western capercaillie (Tetrao urogallus), also known as the Eurasian capercaillie, wood grouse, heather cock, cock-of-the-woods, or simply capercaillie / ˌ k æ p ər ˈ k eɪ l (j) i /, [3] is a heavy member of the grouse family and the largest of all extant grouse species.
Tetrao tetrix The black grouse ( Lyrurus tetrix ), also known as northern black grouse , Eurasian black grouse , blackgame or blackcock , [ 4 ] is a large game bird in the grouse family. It is a sedentary species , spanning across the Palearctic in moorland and steppe habitat when breeding, often near wooded areas.
The grey francolin was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae.He placed it with all the grouse like birds in the genus Tetrao and coined the binomial name Tetrao pondicerianus. [2]
The black-billed capercaillie (Tetrao urogalloides), also known as eastern capercaillie, Siberian capercaillie, spotted capercaillie or (in Russian) stone capercaillie, [2] is a large grouse species closely related to the more widespread western capercaillie.
Tetrao cupido Linnaeus, 1758 The greater prairie-chicken or pinnated grouse ( Tympanuchus cupido ), sometimes called a boomer , [ 2 ] is a large bird in the grouse family . This North American species was once abundant, but has become extremely rare and extirpated over much of its range due to habitat loss . [ 2 ]
The hazel grouse (Tetrastes bonasia), sometimes called the hazel hen, is one of the smaller members of the grouse family of birds.It is a sedentary species, breeding across the Palearctic as far east as Hokkaido, and as far west as eastern and central Europe, in dense, damp, mixed coniferous woodland, preferably with some spruce.
The birds forage on the ground for plant material and small invertebrates, including grain, grass seeds, fallen berries, shoots, tubers, termites and ants. In aviculture they eat small mealworms and wax worms, but care must be used when feeding chicks as they are prone to toe-picking. .