Newborn Barn Swallow Chick In Nest Crying For Food

bird chick swallow barn swallow newborn nest crying food closeup hatchling environment behavior passerine young animal ornithology hirundo rustica natural beak close up hungry wild animal avian birdnest ceiling fauna fledgling life baby bird nest species no people wildlife nestling house habitat calling young behaviour breeding hirundo rustica nobody nature begging creature new life birdwatching