Birds are dangerous for planes, and vice versa. Up until the last decade or so, most airports killed owls and other birds that took up residence near airports. But Boston's Logan Airport was the exception. Snowy owls live in the Arctic most of the time, but migrate south during the coldest months of winter. They often ended up at the airport in Boston, where they could find plenty of mice and rats to eat, as well as other birds.
In 1981, Norman Smith began trapping and relocating the airport owls instead of exterminating them. He's been doing this ever since, and the idea has spread to other airports, especially for birds that are threatened or endangered. Logan Airport has relocated more than 900 snowy owls since Smith came on the scene, and he vows to continue saving these birds as well as the planes for as long as he can. -via Nag on the Lake