detailed close-up portrait of a house sparrow outdoors. passer domesticus. little nimble sparrow basking in the sun on a

house sparrow passer domesticus bird beak basking sun grey brown feathers claws granite moss shadow plumage sitting one closeup portrait common simple black little flies small chirp peep singing nimble color spring summer detailed feather outdoor wing insect disease carrier eats insects flying rat perched animal ecology ornithology birdwatching wildlife observe