Kingfishers are a group of small to medium-sized brightly colored birds in the order Coraciiformes. Most species have bright plumage with little differences between the sexes. They consume a wide range of prey as well as fish, usually caught by swooping down from a perch. While kingfishers are usually thought to live near rivers and eat fish, most of the kingfisher species in the world live away from water and eat small invertebrates.