the willow ptarmigan lagopus lagopus

adopt adults also birch birds both breeding britain brown canada caring changed chicks clutches considered dappled during eat eggs europe family feathers forests four ground grouse growth insects ireland known labrador lagopus laid largely leave moorlands nest nesting newfoundland northern other parents particular phasianidae pheasant place plant play pleistocene plumage populations precocial previously province ptarmigan red remained roamed scandinavia scrape sedentary separate siberia soon species spring subfamily summer tails takes tetraoninae willow