Start learning about Guam's birds...

The Micronesian kingfisher (Halcyon cinnamomina cinnamonina) is one of the world's most endangered bird species. In the 1980s, the Philadelphia Zoo took part in an emergency rescue operation to save the last 29 wild kingfishers from extinction on Guam and bring them back to the United States. The species is now extinct in the wild. The only remaining kingfishers-58 in all-are in United States zoos.