The Western Capercaillie (Tetrao urogallus) Norwegian: Tiur
The Western Capercaillie (Tetrao urogallus), also known as the Wood Grouse, Heather Cock or Capercaillie /ˌkæpərˈkeɪli/, is the largest member of the grouse family. The largest known specimen, recorded in captivity, had a weight of 7.2 kg. (15.9 lbs). Found across Europe and Asia, it is renowned for its mating display.