The Guam Kingfisher formerly lived on Guam. It has not lived in the wild since 1986; males have cinnamon head and underparts, while those of females are paler or white.
It has a large head, strong bill, and iridescent greenish-blue back and wings. Males have cinnamon head, chest, and underparts; females have paler or white corresponding areas.
It is usually solitary or in pairs and is territorial. It eats grasshoppers, small lizards, insects, and crustaceans, and makes nest cavities in decaying trees.
An extinction-risk assessment has not been added yet.