Great Myna or White-vented Myna Foraging in Grassy Meadow, Alerted Looking Around

great myna acridotheres grandis forage green grass meadow bird white vent perched whitevented white vented one animal black yellow beak bill tropics tree habitat windy sit perching closeup close up avian ornithology crest curl backwards feet beak sunlight feather behaviour tropical nature environment wild tree branch wildlife alert searching grass field myna looking walking bushes vietnam phu quc