common pochard in water

common pochard water aythya ferina anatidae medium size duck male beak plumage red head floating swimming lake eyes marshes europe italy latium rieti ripasottile riserva naturale summer daylight sunlight morning environment outdoor outside zoology ornithology ornithologist wings flight migratory animal nature natural wildlife nest eggs chicks breeding bird gregarious flock palmate legs diver omnivorous waterfowl reflection specimen swims calm