Belted Kingfisher
With its top-heavy physique, energetic flight, and piercing rattle, the Belted Kingfisher seems to have an air of self-importance as it patrols up and down rivers and shorelines. It nests in burrows along earthen banks and feeds almost entirely on aquatic prey, diving to catch fish and crayfish with its heavy, straight bill. These ragged-crested birds are a powdery blue-gray; males have one blue band across the white breast, while females have a blue and a chestnut band.
Belted Kingfishers live mostly on a diet of fish including sticklebacks, mummichogs, trout, and stonerollers. They also eat crayfish and may eat other crustaceans, mollusks, insects, amphibians, reptiles, young birds, small mammals, and even berries. A kingfisher looks for prey from a perch that overhangs water, such as a bare branch, telephone wire, or pier piling. When it spots a fish or crayfish near the surface, it takes flight, dives with closed eyes, and grabs the prey in its bill with a pincer motion. Returning with its prize, it pounds the prey against the perch before swallowing it head first. It may also hover above the water instead of searching from a perch.
Belted Kingfishers spend most of the year alone until they pair up during the breeding season. Males (and occasionally females) establish territories, which usually conform to the shape of the stream or shoreline. Belted Kingfishers are monogamous within each breeding season but form new pairs every year. The male feeds the female while courting her. Both members of the pair vigorously defend their territory by chasing away intruders while giving loud rattle calls.
From Allaboutbirds.org