a black kite, milvus migran, sitting in the zoo enclosure looks thoughtfully to the right and down

black kite bird animal wildlife eagle eye zoo wild fly predator biology close people nature tranquility creature milvus migrans elegance ornithology fauna hunting feathered belly isolated winged zoology beak prey colorful right plumage portrait aviary avian flight bill brown flying large beauty majestic head cage feather birdlife breast hunter migran sitting enclosure looks thoughtfully portrait close-up