Capercailzie, capercaillie, or cock of the wood, is the wood grouse (Tetrao urogallus), the largest of the gallinaceous birds of Europe, weighing from 9 to 12 Ibs. In the male the neck and head are ashy black, the wings and shoulders brown with small black dots, the breast variable green, the belly black with white spots, the rump and flanks black ... Found on http://www.probertencyclopaedia.com/browse/BC.HTM