grey-headed fish-eagle haliaeetus ichthyaetus, large raptor in wetlands, rivers of southeast asia, india, fish hunter, vital to

wildlife thailand territorial talons sri lanka raptor prey predator plumage perch outdoor ornithology nature natural myanmar mangroves malaysia large lake indonesia india ichthyophaga ichthyaetus hunter headed haliaeetus greyheaded fish eagle grey gray forest fisheagle diurnal cambodia brown birdwatching birding bird biodiversity beak bangladesh background asia animal wetlands rivers southeast vital freshwater ecosystems perched water