beak bird drop drops eye eyes feather feathers head nature swan water background bill black copyspace flamingo isolated neck pink preen sveres Dark eyed Junco Emberizidae Junco Perching bird songbird sparrow swallow vertebrate Adaptation Chipping Sparrow house sparrow Plant community wildlife night owl owl ears owl eyes sky star stars tree branch animal avian flight fly prey scavenge scavenger squark vulture birds frozen grey heron Heron ice Nyberg winter hawk portrait texture wing wings canada Corvidae curious driftwood feet natural raven aquatic Australian black-bill black-winged-stilt carnivores carnivorous cautious dog-bird foraging himantopus-himantopus long-beaked long-legged longshanks mature pied-stilt red-legged sharp-beaked sharp-bill shore-bird stilt territorial thin wader wading wading-bird white white-headed-stilt wide-spread aviculture body bright cacatua-galerita caged captive cockatoo colors colours conspicuous crest curled curling curved-beak dark-grey-black-bill distinctive fluffy iconic intelligent large mimicry Noisy numerous parrot plumage popular powerful screeching strong sulphur-crested yellow