Hazel Grouse (Tetrastes bonasia) [XC130419]
by Albert Lastukhin from Supra\u015bl, bia\u0142ostocki, Podlaskie Voivodeship, Sweden (call)
Hazel Grouse (Tetrastes bonasia) [XC612692]
by Karol Kustusch from Gmina Dubeninki (near Czarnowo \u015arednie), go\u0142dapski, Warmi\u0144sko-Mazurskie, Poland (call, song)
Subspecies
Forms superspecies with Chinese Grouse (Bonasa sewerzowi).
Occasional hybridization reported with Willow Ptarmigan (Lagopus lagopus), Rock Ptarmigan (Lagopus muta) and Black Grouse (Lyrurus tetrix). Complex taxonomy, with various attempts to lump subspecies, e.g. only four recognized: with styriaca, rhenana and schiebeli placed in rupestris; volgensis and griseonota in bonasia; kolymensis in sibirica; amurensis and yamashinai in vicinitas.
The following 12 subspecies are recognised:
styriacus (von Jordans and Schiebel, 1944) - Jura Mts, Alps, Hungary, Slovakia and southern Poland.
rhenanus (Kleinschmidt, 1917) - North-eastern France, Luxembourg, Belgium and western Germany.