The belted kingfisher (''Megaceryle alcyon'') is a large, conspicuous water kingfisher, native to North America. All kingfishers were formerly placed in one family, Alcedinidae, but recent research suggests that this should be divided into three subfamilies.

Taxonomy

The first formal description of the belted kingfisher was by the Swedish naturalist

Carl Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his Nobility#Ennoblement, ennoblement in 1761 as Carl von Linné#Blunt, Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalise ...

in 1758 in the tenth edition of his '' Systema Naturae''. He introduced the binomial name ''Alcedo alcyon''. The current genus ''Megaceryle'' was erected by the German naturalist Johann Jakob Kaup in 1848. ''Megaceryle'' is from the

Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...

''megas'', "great", and the existing genus '' Ceryle''. The specific ''alcyon'' is

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

for "kingfisher". The ''

Megaceryle ''Megaceryle'' is a genus of very large kingfishers. They have a wide distribution in the Americas, Africa and southeast Asia. The genus was erected by the German naturalist Johann Jakob Kaup in 1848. The type species is a subspecies of the cr ...

'' large green kingfishers were formerly placed in ''Ceryle'' with the

pied kingfisher The pied kingfisher (''Ceryle rudis'') is a species of water kingfisher widely distributed across Africa and Asia. Originally described by Carl Linnaeus in 1758, it has five recognised subspecies. Its black and white plumage and crest, as well as ...

, but the latter is closer to the ''

Chloroceryle The American green kingfishers are the kingfisher genus ''Chloroceryle'', which are native to tropical Central and South America, with one species extending north to south Texas. Species There are four species: The American green kingfishers b ...

'' American green kingfishers. The belted kingfisher's closest living relative is the ringed kingfisher (''M. torquata''), and these two in all probability originated from an

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

n ''Megaceryle'' which colonized the Americas.

Description

The belted kingfisher is a stocky, medium-sized bird that measures between in length with a wingspan of between . This kingfisher can weigh from . The adult female averages slightly larger than the adult male. This species has a large head with a shaggy

crest Crest or CREST may refer to: Buildings *The Crest (Huntington, New York), a historic house in Suffolk County, New York *"The Crest", an alternate name for 63 Wall Street, in Manhattan, New York *Crest Castle (Château Du Crest), Jussy, Switzerla ...

. Its long, heavy bill is black with a grey base. These features are common in many kingfisher species. This

kingfisher Kingfishers are a family, the Alcedinidae, of small to medium-sized, brightly colored birds in the order Coraciiformes. They have a cosmopolitan distribution, with most species found in the tropical regions of Africa, Asia, and Oceania, ...

shows reverse

sexual dimorphism Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most an ...

, with the female more brightly coloured than the male. Both sexes have a slate blue head, large white collar, a large blue band on the breast, and white underparts. The back and wings are slate blue with black feather tips with little white dots. The female features a rufous band across the upper belly that extends down the flanks. Juveniles of this species are similar to adults, but both sexes feature the rufous band on the upper belly. Juvenile males will have a rufous band that is somewhat mottled while the band on juvenile females will be much thinner than that of adult females.

Distribution and habitat

The only

in the majority of its range, the belted kingfisher's breeding habitat is near inland bodies of waters or coasts across most of North America, within Canada,

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S. ...

and the United States. They migrate from the northern parts of its range to the southern United States, Mexico,

Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...

, and the

West Indies The West Indies is a subregion of North America, surrounded by the North Atlantic Ocean and the Caribbean Sea that includes 13 independent island countries and 18 dependencies and other territories in three major archipelagos: the Greate ...

in winter. It is a rare visitor to the northern areas of Colombia, Venezuela, and the Guianas. During migration it may stray far from land; the species is recorded as an accidental visitor on several Pacific islands, such as

Cocos Island Cocos Island ( es, Isla del Coco) is an island in the Pacific Ocean administered by Costa Rica, approximately southwest of the Costa Rican mainland. It constitutes the 11th of the 13 districts of Puntarenas Canton of the Province of Puntarena ...

Malpelo Island Malpelo is a small oceanic island in the eastern Pacific Ocean, located about west of the Colombian mainland with a military post manned by the Colombian Armed Forces. It consists of a sheer and barren rock with three high peaks, the highest ...

Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state ...

, the

Azores ) , motto =( en, "Rather die free than subjected in peace") , anthem= ( en, "Anthem of the Azores") , image_map=Locator_map_of_Azores_in_EU.svg , map_alt=Location of the Azores within the European Union , map_caption=Location of the Azores wi ...

Clarion Island Isla Clarión, formerly called Santa Rosa, is the second largest, westernmost and most remote of Mexico's Revillagigedo Islands. The island is located west of Socorro Island and over from the Mexican mainland. It has an area of and three pr ...

, and has occurred as an extremely rare vagrant in Ecuador, Greenland, Ireland, Netherlands, Portugal, and the United Kingdom. The southernmost records of ''M. alcyon'' are from the Galapagos Archipelago, insular

Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ' ...

, where it occurs as a migrant in small numbers but apparently not every year. It leaves northern parts of its range when the water freezes; in warmer areas, it is a permanent resident. A few individuals may linger in the north even in the coldest winters except in the

Arctic The Arctic ( or ) is a polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenland), Finland, Iceland, N ...

, if there are remaining open bodies of water.

Ecology and behaviour

The belted kingfisher is often seen perched prominently on trees, posts, or other suitable watchpoints close to water before plunging in headfirst after its fish prey. They also eat amphibians, small

crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can ...

s, insects, small mammals and reptiles. As the kingfisher flies about its habitat, it frequently emits a characteristic rattling call. Accordingly, a small group of belted kingfishers is known as a rattle, concentration, or kerfuffle. This bird nests in a horizontal tunnel made in a river bank or sand bank and excavated by both parents. The female lays five to eight eggs and both adults share the task of incubating the eggs and feeding the young. During the breeding season, males may also exhibit a strong degree of territoriality in the immediate vicinity of their nest, chasing away conspecifics and predators alike. The nest of the belted kingfisher is a long tunnel and often slopes uphill. One possible reason for the uphill slope is that, in case of flooding, the chicks will be able to survive in the air pocket formed by the elevated end of the tunnel.

References

External links