Leks

During the breeding season, black grouse males parade their black plumage, enhanced by their red wattles and lyre-shaped tail feathers. The males try to impress and attract the hens on a patch of territory known as a “lek”. The hens observe nearby, perched or on the ground. The song is a succession of stanzas composed of cooing and then hissing. It is heard here from the end of April to the end of May.