spilornis cheela,serpent-eagle face

animal avian beak beautiful bill biology bird birding birds birdwatching bright cheela chiang conservation crested domestic eagle ecology ecosystem elanus eyes face falco falcon feather flight focus freedom grace graceful grey habitat haliaeetus haliastur hawk head headshot heron hunter indus kabini kestrel large looking majestic national natural nature ornithology park pelican perch peregrine peregrinus photography plumage portrait pose predator prey raptor resting serpent side spilornis spring station sunlight taiwan thailand vertical wallpaper watching wild wildlife wing wingspan zoology