Definition
The black grouse (*Lyrurus tetrix*) is a medium-sized grouse found across Eurasia. Males are known for their black plumage and lyre-shaped tails, used in lek mating displays. Females, called greyhens, have mottled brown plumage. Think of them as the tuxedo-wearing party animals of the bird world! π€΅πΎThey live in habitats ranging from moorlands to forests. Their elaborate displays are a sight to behold.