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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.
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.
These facts about kittens will help you become an expert on one of the world's cutest and cuddliest baby animals.
Rare Bird Yearbook 2008: The World’s most Threatened Birds. MagDig Media. p. 139. International Union for Conservation of Nature and Natural Resources (IUCN). (1979). Cantabrian capercaillie (Tetrao urogallus cantabricus). Compiled by W.B. King on behalf of the International Council for Bird Preservation and the Survival Service Commission of ...
Whatever your views on outdoor cats, it’s unavoidable that indoor cats are safer to birds – a study from 2013 found that domestic cats kill billions of birds and mammals each year.
Since 2022, the USDA has tracked over 300 cases of the EA H5N1 strain in mammals across the US. From March 2024 to the present day, several dozen cases have been confirmed in domestic cats, the ...
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]