australian ibis (threskiornis spinicollis), on a white background.

australian ibis threskiornis spinicollis bird wading waterfowl australia black-headed white plumage long legs beak isolated background nature wildlife avian habitat wetlands marshes foraging feeding behavior social flocking migration ecology conservation biodiversity ecosystem ornithology birdwatching identification habitat loss endangered species aquatic birds nesting breeding juvenile adult shorebird graceful adaptation diet insects crustaceans environmental indicators unique features bird photography wildlife scientific classification