May 1958 – vol. 51, issue 5–192 T H E CAPERCAILLIE (Tetrao urogallus) is the largest and most spectacular of t h e Palaearctic game birds. A fully-grown male may weigh around 12 pounds (even up t o 14) and is unlikely to be confused with anything else on size alone. The general colouring is dark slate-grey, with browner wings. A red wattle over the eye and a bristling beard combine t o give the bird a very aggressive appearance ... This article is only available to registered users.To read more, please log in or purchase a subscription.