White Terns are native throughout the world's tropics and subtropics, where they breed almost exclusively on remote islands that are free of predators like cats, dogs, rats, and mongooses. Historically, this was also true in Hawai'i, but in 1961 a pair of White Terns laid an egg and raised a chick near Hanauma Bay. Since then their numbers in the city of Honolulu have steadily increased, and in 2007 the White Tern, also known by its Hawaiian name,...