black-bellied whistling-duck, dendrocygna autumnalis, brown birds in the water march, animal in the nature habitat, costa rica. du

america animal argentina autumnalis avian beak bellied bird birdwatching black branch brazil brown closeup costa dendrocygna duck exterior fauna feathered feathers flock horizontal latin natural nature orange ornithology outdoor outside pantanal paraguay perched peru plumage profile rica shoal south tree uruguay water waterbird waterfowl whistling wild wildlife wing zoology