aggressive alert bird birds black brown colorful colourful common curious inquisitive javan mature mother Myna myna birds mynah Noisy plumage precocious roadside ruffled ruffled feathers street watchful widespread yellow african biological-interaction broad-mouthed collagen creases eating endangered flat-mouthed folds food gray grazer grey heavy herbivore herbivorous hide horns keratin large mammal myna-birds placid powerful rhino rhinoceros skin snout square-lipped-rhinoceros strong symbiosis symbiotic threatened tough white-rhinoceros wide-lipped-rhinoceros wrinkled wrinkles animal Australian beautiful cheeky conservation creation cute environment fauna feathers feeding free green hunting Manorina melanocephala native nature noisy miner ornithology pose standing stare staring watching beak close up eye face avian brave claws dez pain disapproving garden threatening wild xymonau