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By Alicia Ivory
Geographic Range
Belted kingfishers are native only to the Nearctic region. They breed as far north as northern Canada and Alaska and winter as far south as Central American and the Caribbean islands. They are found throughout the year from southern Canada and coastal Alaska throughout much of the United States. (Fry, 1992)
Habitat
Belted kingfishers occur in various aquatic habitats. They can inhabit lakes, mountain streams, coasts, mangrove forests, tidal creeks, swamps, rivers, garden ponds, and calm marine waters. They need clear, still water for fishing, and places to perch while looking for prey. Belted kingfishers prefer waters that are not overgrown with vegetation. They require unvegetated, earthen banks in order to make their nesting burrows. (Hamas, 1994; Fry, 1992)
These animals are found in the following types of habitat:
temperate
; terrestrial
; saltwater or marine
; freshwater
.
Aquatic Biomes:
lakes and ponds; rivers and streams; coastal
.
Wetlands: marsh
.
Physical Description
(4.93 to 5.98 oz)
(11.02 to 13.78 in)
Belted kingfishers are medium-sized, stocky birds. Their plumage is blue-gray, except for a white collar and belly. Both sexes have a gray chest band, and females have an additional rufous-colored (reddish brown) chest band. Unlike most birds, it is females of this species that are conspicously colored. Their length ranges from 28-35 cm, with a head and bill that are large compared to their bodies. Their heads also has a very noticable, ragged, double-pointed crest that reaches from the base of the bill to the back of the neck. Juveniles closely resemble adult females in coloration.
Some key physical features:
endothermic
; homoiothermic; bilateral symmetry
.
Sexual dimorphism:
female more colorful.
Reproduction
Belted kingfishers breed once yearly, unless their first clutch is destroyed.
Breeding season varies with latitude, from January in the south to June in the north.
Belted kingfishers are seasonally monogamous. Pair bonds are formed soon after the male establishes his territory. During courtship, the male sings mewing songs to the female, and also feeds her. There are no known pre-copulatory displays, but after copulation, the male, followed by the female, often performs a flight display in which he soars and dips his wings close to the surface of the water. After mating, the pair digs a long tunnel (active nests have a tunnel at least 80cm long) into a wall of clay or sand. At the end, they dig a nesting cavity. Sometimes swallows will share the tunnel, making bungalows in the sides of the wall. Belted kingfishers are believed to select the nest site as a pair; they find an acceptable area and the male begins to slash at the substrate with his bill. The female is never perched far away, and will call to him continuously during this process. They also constantly rattle-call to each other during the actual digging of the tunnel, which is done by both sexes.
(Hamas, 1994; Fry, 1992;
http://www.efn.org/~jpreed/Eddy1.html;
http://www.indiana.edu/~iupress/birds/kingfisher.html)
Mating systems:
monogamous
.
Belted kingfisher pairs prefer to construct nest burrows near their fishing territory, but the nest site can be located far away from water.
The clutch is usually 6-8 pure white, glossy eggs, and incubation is 22-24 days. (Hamas, 1994; Fry, 1992;
http://www.efn.org/~jpreed/Eddy1.html;
http://www.indiana.edu/~iupress/birds/kingfisher.html)
Key reproductive features:
iteroparous
; seasonal breeding
; gonochoric/gonochoristic/dioecious (sexes separate); sexual
; asexual
; fertilization
; oviparous
.
Both parents incubate, with the female sitting through the night, and the male taking her place in the early morning. The male sometimes feeds the female while she sits. Belted kingfishers will renest only if the first clutch is destroyed. The young are brooded constantly for 3-6 days after hatching, usually by the female. Food is regurgitated for the chicks, and the male feeds them twice as often as the female. Fledgings leave the burrow around the 28th day. The young remain with the parents for about 3 weeks, and are fed by them with increasing irregularity for this amount of time. Eventually, the parents refuse to feed them anymore, and the chicks are thus forced to feed themselves.
(Hamas, 1994; Fry, 1992;
http://www.efn.org/~jpreed/Eddy1.html;
http://www.indiana.edu/~iupress/birds/kingfisher.html)
Parental investment:
altricial
; pre-fertilization (provisioning, protecting: female); pre-hatching/birth (protecting: male, female); pre-weaning/fledging (provisioning: male, female, protecting: male, female); pre-independence (provisioning: male, female, protecting: male, female).
Behavior
Belted kingfishers are generally solitary, except during the breeding season. Pairs strongly defend their territories throughout the breeding season. The male especially will escort an intruder out of his feeding grounds, scolding all the way. If anything is out of order in a belted kingfisher's territory, it often responds by erecting the crest feathers. However, most territorial defense is accomplished through calling and aerial chases. Hovering in search of prey has been observed. Most individuals migrate, though members of this species are capable of withstanding North American winter temperatures provided that open water is available. Belted kingfishers are active throughout the day.
(Hamas, 1994;
http://www.efn.org/~jpreed/Eddy1.html)
Key behaviors:
flies; diurnal
; motile
; migratory
; solitary
; territorial
.
Communication and Perception
A vibrating, mechanical rattle is the characteristic call, given at the smallest disturbance. A scream is also often used by both sexes, in confrontational retreat, while displaying a threat, or as a greeting when a mate is approaching.
Food Habits
The main diet of belted kingfishers consists of various types of fish, especially brown trout, bluntnose minnows, bluegill sunfish, sculpin, and Atlantic salmon. They usually eat small fish, but belted kingfishers have been observed to swallow fish as long as the bird itself, sometimes leaving an inch or so of the tail sticking out of the beak. If fish are scarce, they also eat snails, crustaceans, insects, amphibians, reptiles, young birds, small mammals, and berries. Anything that remains undigested is later regurgitated as a pellet. Belted kingfishers normally hunt from perches bordering a body of water. Belted kingfishers dive for their prey with their eyes closed. They usually do not go under water, instead they grab their prey near the surface of shallow waters. Once they have captured their prey, they fly up to a branch, and stun the prey by slamming it against the branch. They then toss it into the air, catch it headfirst, and swallow it. Clear water and a clear view of prey are vital to belted kingfishers for successful foraging. During the summer months they can be seen feeding in small ditches, creeks, large rivers, and along margins of ponds and lakes.
(Hamas, 1994;
http://www.efn.org/~jpreed/Eddy1.html;
http://www.indiana.edu/~iupress/birds/kingfisher.html)
Animal Foods:
birds; mammals; amphibians; reptiles; fish; insects; terrestrial non-insect arthropods; mollusks; aquatic crustaceans.
Plant Foods:
fruit.
Predation
- hawks (Accipitridae)
- striped skunks (Mephitis mephitis)
- American minks (Neovison vison)
- raccoons (Procyon lotor)
- snakes (Serpentes)
Belted kingfishers will mob predators and can be quite aggressive. They emit a shrill, rattling cry and will chase intruders until they leave the territory. Fledgling belted kingfishers may fall prey to hawks, as they are poor flyers. Other predators will prey on nestlings in the nest, though predation rates of belted kingfisher nestlings is low as they are protected in nest cavities.
Economic Importance for Humans: Negative
Before migratory bird laws were enacted, belted kingfishers were often shot by humans at fish hatcheries and by trout streams, where they were considered significant predators. (Hamas, 1994)
Economic Importance for Humans: Positive
Belted kingfishers are important members of ecosystems and fascinating birds to watch.
Conservation Status
IUCN Red List: [link]:
Least Concern.
US Migratory Bird Act: [link]:
Protected.
US Federal List: [link]:
No special status.
CITES: [link]:
No special status.
State of Michigan List: [link]:
No special status.
Population growth has been stimulated by human activity in some regions, such as the digging of sand and gravel pits, which create nesting habitats. The belted kingfisher does not seem to be as affected as other fish-eating birds by environmental contaminents. It is sometimes still shot illegally at some fish hatcheries. (Hamas, 1994)
Other Comments
There are two subspecies recognized: M. a. alcyon, from eastern North America, and M. a. caurina, from Alaska and the Pacific Northwest. (Hamas, 1994)
For More Information
Find Megaceryle alcyon information at
Contributors
Alicia Ivory (author), University of Michigan.






