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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. The heaviest-known specimen, recorded in captivity, had a weight ...
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]
Print/export Download as PDF; Printable version; ... Western capercaillie This page was last edited on 28 November 2024, at 15:11 (UTC). Text is available under ...
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The rackelhahn or rackelwild is a hybrid between the western capercaillie (Tetrao urogallus) and the black grouse (Lyrurus tetrix). [ 1 ] [ 2 ] [ 3 ] References
Compared to the western capercaillie, it is slightly smaller in size with a slimmer body profile and longer neck, has a black beak (hence its name) instead of being horn-colored, and a longer, more spatulate tail. The eastern capercaillie has a somewhat glossy bluish-black head and neck down to a metallic turquoise breast.