fighting lekking black grouses. birkhuhn, black grouse (tetrao tetrix), blackgame (lyrurus tetrix). close up portrait of a lekking

action animal beauty bird birding birdwatching birkhuhn black blackgame bog breeding call early european fauna feather fighting forest game gorgeous grouse head hunt lek lekking lyrurus male mating morning nature ornithology playing red russia season singing species specific spring springtime sunlight sunrise sunset tetrao tetrix wetland wild wilderness wildlife