Kingfishers are medium-sized water birds. The kingfisher has a turquoise back, chestnut-brown belly, a spot on the top of the head, and a red beak and feet. Kingfishers look a lot like woodpeckers from a distance. The kingfisher is called the kingfisher because of the bright blue feathers on its back and face.

There are about 90 species of kingfishers, and the common feature is that they have a large head and more gorgeous feathers. The vast majority of kingfisher species are found in the tropics, with very few species found exclusively in forests. Their prey is diverse, mainly fish, but also crustaceans and various aquatic insects.

The grey-headed kingfisher is one of the more common species of kingfisher. It has a grey head, red beak and feet, a reddish-brown body, and blue feathers on its back. They hunt alone or in pairs. When the gray-headed kingfisher hunts, it stands on a rock and observes patiently for a long time, and finds a small fish surfaced, swoops to the surface with its pointed beak to catch the fish, and then flies to a tree or rock to swallow it. They live in coastal areas and along waterways, are agile and patient, and feed on fish. The gray-headed kingfisher has relatively high requirements on the ecological environment.

The white-throated kingfisher is a rare species of kingfisher also known as the white-throated emerald. It is slightly larger in size, about 27 cm. The mouth is red, the head, neck and belly are maroon, the chest is white, the upper back, wings and tail are blue, and the feet are red. Loud kee-kee-kee-kee squeals and hoarse sounds when flying or perching. White-throated kingfishers often stand alone or in pairs or perch on fences, poles, or branches to wait for prey. They are widespread in South and West Asia and are entirely carnivorous.

The black-headed kingfisher is also a species of kingfisher. They have huge bodies, about 30 cm in length. The head is black, with what appears to be a white scarf around the neck, the upper body is blue or purple, the lower body is brown, and the mouth and feet are red. Ecological habits are similar to other species, feeding on fish, but also shrimp, crabs, wedges and various insects. They often stand on utility poles near the water's edge, or on sparse branches, waiting for an opportunity to forage, and perch in woods or bamboo forests at night.