Black Grouse or Blackgame (Lyrurus tetrix), courting cock

animal animals area areas aves bavaria bavarian bayerischer bayrischer behavior behaviour bird birds black blackgame blackgames capped cock conservation court courting courtship covered day daylight daytime display displays during europe european exterior exteriors fauna federal forest frg galliformes german germany grouse kingdom lyrurus mate mating national national nationalpark natural nature nobody of or outdoor park park parks phasianidae photo photos preserve preserves republic reserve reserves sanctuaries sanctuary season shot shots snow snowy southern tetrao tetrapod tetrix the vertebrata vertebrate vertebrates wald wild wildlife winter wintertime wintery wintry woo wooing world