White wagtail resting and looking for food on stone

white wagtail wagtail pied wagtail motacilla alba bird passerine birding motacilla ornithology motacilla flava beak birdwatching adult motacillidae isolated wildlife songbird grey animal environment fauna nature tail small background natural standing sitting feather wild feathers water closeup white background beautiful wing flava green cute european outdoor western color summer yellow europe white black colorful