Four barn swallow (Hirundo rustica) chicks chirping, Custer State Park, South Dakota, United States of America, North America

color image photography outdoors no people nobody day animal four animals wild wild animal young barn swallow chicks barn swallow chick swallow swallows chicks chirp selective focus horizontal nature four animals animal themes wildlife mouth open bird young animal nest front view full length species usa barn swallow hirundo rustica chick chirping custer state park south dakota united states of america north america cute adorable sirius collection