african balearica-pavonina banded beak bird black black-crested-crane black-crowned-crane black-head-patch captive crane crest crown display displayed displaying distinctive feathers forager golden-head-feathers gruidae gruiformes large long-legged long-necked omnivore omnivorous plumage spreading Sub-Saharan toes trained trees-roosting Ugandan-national-bird vertebrate white wildlife wings wingspan Africa animal avian balearica beautiful beauty blue close-up colorful conservation crested crowned eye face fauna feather gold grass gray green grey head looking national natural nature neck ornithology park portrait red regulorum safari savanna wattle wild wing