great blue heron in flight. four high-quality images of bird in motion. unique perspectives of crane in different stages of

great blue heron bird crane flying flight high quality white background majestic long neck legs feathers colors details avian transparent isolated wildlife nature birds waterbirds wading shorebirds aerial birdwatching ornithology feathered patterns behavior migration conservation environmental ecology reserve sanctuary habitat ecosystem biodiversity life avifauna ornithological species types classes waterfowl shorebird raptor game