Caucasian grouse
（重定向自Lyrurus mlokosiewiczi）
![](/Images/godic/202501/25/Tetras_du_caucase_jogo_0g4716.jpg")
The Caucasian grouse (Tetrao mlokosiewiczi) is a large bird in the grouse family. It is closely related to the black grouse (T. tetrix). It occurs in extreme southeastern Europe and adjacent regions. The scientific name of this bird commemorates the Polish naturalist Ludwik Mlokosiewicz.