Summary ²

The western capercaillie (Tetrao urogallus), also known as the wood grouse, heather cock or just capercaillie /ˌkæpərˈkeɪli/, is the largest member of the grouse family. The largest known specimen, recorded in captivity, had a weight of 7.2 kg (16 lb). The species shows extreme sexual dimorphism, with the male twice the size of the female. Found across Europe and Asia, this spectacular ground-living forest bird is renowned for its mating display. The United Kingdom population, confined to the...

Sources and Credits

1. (c) Terje Asphaug, some rights reserved (CC BY), http://www.flickr.com/photos/33010465@N04/3080761656
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Tetrao_urogallus

More Info

• iNat taxon page
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Global Biodiversity Information Facility (GBIF)
• NBN Atlas
• VertNet
• Xeno-canto

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