Four barn swallow (Hirundo rustica) chicks chirp as parent approaches nest with food, Custer State Park, South Dakota, United States of America, North America

animals approaches approaching baby animal barn swallow bird blurred motion chick chicks color image custer state park day environment family with four children five animals food four animals front view head and shoulders hirundo rustica horizontal hungry motion mouth open nature nest nobody north america outdoors parent photography rear view south dakota state park swallow travel travel destinations united states wildlife america american americas animal color colour daytime hunger movement outside parenting park sd us usa united states of america us usa young