the caucasian grouse is a sedentary species, breeding in the caucasus and pontic mountains of northeast turkey on open slopes with low "rhododendron" or other scrubs but in proximity to deciduous broad-leaf forest. these bird have a group display or lek in may and june. unlike the male eurasian black grouse, the caucasian grouse display is almost mute but for a thin whistling of the cock fluttering his wings as he leaps and turns in the air, producing a flash of white as the underwing feathers are briefly revealed. the hen lays up to ten eggs in a ground scrape and takes all responsibility for nesting and caring for the chicks, as is typical with gamebirds.