Black grouse  (Tetrao tetrix)

The black grouse, also known as 'blackgame' (4) is one of Britain's most striking gamebirds (5). The male has glossy blue-black plumage, white wing bars, a lyre shaped tail and white under-tail coverts. Females are brown with pale wing bars, and both sexes have red wattles above the eye. Displaying males produce a bubbling pigeon-like rroo-ooo sound known as 'rookooing'(2).