asian openbill stork - anastomus oscitans large flying bird in ciconiidae, indian subcontinent and southeast asia, greyish or

wings wing wildlife white wetlands water upper swamp stork sri lanka plumage oscitans ornithology openbill nesting nest nature natural meadow material mandible lower large indian india greyish green gap flying fly flight feathers feather fauna colony ciconiiformes ciconiidae black birdwatching birds birding bird bill beautiful beak background avian asian asia anastomus subcontinent southeast