Hazel Grouse (Tetrastes bonasia) [XC422099]
by Albert Lastukhin from Gmina Ryman\u00f3w, kro\u015bnie\u0144ski, Wojew\u00f3dztwo podkarpackie, Poland (call, female calls young)
Hazel Grouse (Tetrastes bonasia) [XC132117]
by Albert Lastukhin from Zvenigovsky District, Mari El Republic, Poland (song)
Subspecies
Forms superspecies with Chinese Grouse (Bonasa sewerzowi).
Occasional hybridization reported with Willow Grouse (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.