the grey-headed swamp hen (porphyrio poliocephalus), yala national park sri lanka

adult animal asia avian beak beautiful biodiversity bird birding birdwatching blue closeup colorful ecosystem environment exotic fauna feather greyheaded swamp hen habitat india lake landscape national park nature ornithology outdoor perched plumage porphyrio poliocephalus portrait scene season small species sri lanka summer swamphen tropical wading birds walking water wetland wild wildlife wing yala