Another species that has greatly been helped by Animal Kingdom's special care is the Micronesian Kingfisher. These birds are native to the islands of Guam, Palau and Pohnpei, but they are no longer seen in these areas. Due to the introduction of the brown tree snake in their habitats, they have been practically extinct for a few years now. Only existing because of conservation breeding, there are currently less than 150 birds of this species in the whole world. The worst thing is that breeding them is especially difficult, because incompatibility between males and females. Still, a pair of chicks were born at Animal Kingdom a few years ago as well. It is an admirable task on their part.