Tetrao
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[Photo] Capercaillie, Tetrao urogallus, also known as the Wood Grouse or more specifically Western Capercaillie is the largest member of the grouse family, reaching over 100 cm in length and 4 kg in weight. Found across northern Europe and Asia, it is renowned for its mating display. Date 29.06.2007. Author Richard Bartz (http://commons.wikimedia.org/wiki/User:Richard_Bartz), Munich aka Makro Freak (http://commons.wikimedia.org/wiki/User:Makro_Freak)

Tetrao is a genus of birds in the grouse family.

Species
Eurasian Black Grouse, Tetrao tetrix
Caucasian Black Grouse, Tetrao mlokosiewiczi
Capercaillie, Tetrao urogallus
Black-billed Capercaillie, Tetrao parvirostris

http://en.wikipedia.org/wiki/Tetrao

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