One of the many winged residents of the Center for Birds of Prey. Photo credit: Justine E. Hausheer Here comes Trouble. He’s perched on Matt Smith’s arm, cocking his head left and right as the summer cicadas buzz high in the oaks. His eyes are a fierce yellow, the plumage on his head and tail is a vivid white, and the feathers on his back and wings are a deep, glossy brown. Suddenly he breaks into a round of flapping, losing some of his characteristic avian grace as he lurches between wingbeats. After a few seconds Trouble quiets down, cocks his head, and shoots an imperious glare in my direction. Trouble the bald eagle is aptly named, for his school bus-yellow bill almost landed him in big, big trouble. The top and bottom curves of his bill cross abnormally, instead of fitting neatly together. He would have died without human help. Eagle beaks and talons grow like human fingernails, explains Katie Warner, the program manager for the Maitland Center for Birds of Prey, where...