Ringed kingfisher

Last updated

Ringed kingfisher
MARTIM-PESCADOR-GRANDE (Megaceryle torquata).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Class: Aves
Order: Coraciiformes
Family: Alcedinidae
Subfamily: Cerylinae
Genus: Megaceryle
Species:
M. torquata
Binomial name
Megaceryle torquata
(Linnaeus, 1766)
Subspecies [2]
  • M. t. stictipennis - (Lawrence, 1885)
  • M. t. torquata - (Linnaeus, 1766)
  • M. t. stellata - (Meyen, 1834)
Ringed Kingfisher distribution map.png
     distribution
Synonyms [3]
  • Alcedo torquataLinnaeus, 1766
  • Ceryle torquata(Linnaeus, 1766)

The ringed kingfisher (Megaceryle torquata) is a large, conspicuous, and noisy kingfisher bird commonly found along the lower Rio Grande Valley in southeasternmost Texas in the United States through Central America to Tierra del Fuego in South America. [4]

Contents

Description

Megaceryle torquata is a Neotropical kingfisher that lives in habitats ranging between the US and Mexico. In 1888, the species was first discovered in the US, while the first ringed kingfisher nest was found in 1970. [4] They are commonly seen along the Rio Grande and in water bodies in southern Texas. Their distribution is increasing and expanding northwards. [4]

Measurement

The wings of adult males range between 184.9 and 211.1 mm (7.28 and 8.31 in), with an average of 196.3 mm (7.73 in).  Their tails range from 110.0–129.0 mm (4.33–5.08 in), and their bills measure 74.9–94 mm (2.95–3.70 in). Female wings are from 185.0-210.1 mm, and their tails measure 111.5–132.1 mm (4.39–5.20 in) and possess bills measuring 75.9–90.9 mm (2.99–3.58 in). [5] Individuals can weigh between 305 and 341 g (10.8 and 12.0 oz). [6] Such measurements prove that the species do not differ sexually in terms of size.

A closer look at the head of a male ringed kingfisher Ringed Kingfisher (Megaceryle torquata) male - Flickr - berniedup.jpg
A closer look at the head of a male ringed kingfisher

Identification

Ringed kingfishers have dark-brown irises that are consistent among all age groups. They have straight bills that are longer than their heads, along with curved culmens and tomial serrations. [7] The lower mandible appears to have some yellowish colorations. They possess syndactyl feet with olive-green or yellowish toes and black claws. A large crest appears between the base of their bills and necks. Several individuals have a white collar located around the neck. [7]

Plumage

Each ringed kingfisher possesses 10 primary wings, 15 secondaries, three tertials, and 12 rectrices. They are rounded, and the tail is squared. Subspecies can be found in Texas, Mexico, Central America, and South America, due to slight plumage differences. [4] Individuals themselves vary slightly as a result of variable environmental constraints and day-length regimes.

Sexual dimorphism

Ringed kingfishers can be identified by sex due to differences in coloration. The males possess rusty-brown underparts with white undertail coverts and a white throat. Females have a bluish-gray band seen on the upper breast and a whitish band. [8]

Eggs

A ringed kingfisher's clutch size is typically three to six eggs, which are incubated for about 22 days. [9]

Taxonomy

The ringed kingfisher is from the family Alcedinidae in the order Coraciiformes. [10] The ringed kingfisher is related to the belted kingfisher. [11] Overall, the species appears much larger than its counterpart, while possessing a rufous belly, a massive bill, and a blue back. [12]

Male Kingfisher perching over a river to capture its prey Megaceryle torquata-Ringed Kingfisher.jpg
Male Kingfisher perching over a river to capture its prey

Subspecies

Three subspecies are identified by size and color, as well as location. [12]

Habitat and distribution

Habitat

Coiba Island, an example of a preferred ringed kingfisher habitat Isla de Coiba - Granite de Oro - Pacific Ocean Islands off Panama - panoramio (25).jpg
Coiba Island, an example of a preferred ringed kingfisher habitat

Ringed kingfishers are seen in freshwater habitats, tropical and temperate marine shorelines, and several islands, such as Coiba Island. [14] Breeding occurs in aquatic regions with the support of aquatic animals, including fish-populated areas for nesting burrows. Nests can be found farther away from water. [15] Habitats are near waterbodies that include streams, rivers, ponds, lakes, estuaries, and marine habitats. Habitats with clear water and less vegetation are preferred to easily access prey. [13]

Distribution

Ringed kingfishers are found in broad areas between Texas, USA and South America. The ranges of ringed and belted kingfishers overlap from Central America and above for 6–8 months. Ringed kingfishers also have ranges that overlap with other kingfisher species in Central and South America. [13] Breeding ranges of ringed kingfishers vary in the Neotropics in Mexico, the Caribbean, and South America. Their preference for mangrove habitats has been observed in the tropics. [15] Foraging occurs offshore as far as 1 km (.7 mi). [16] Overwintering ringed kingfishers are indifferent to breeding ranges, but are able to forage farther than during their breeding periods. Large irrigation canals in Rio Grande, Texas, have been used as wintering grounds by such species. They are usually found in areas with high fish densities during the dry season. [13]

Behavior

Locomotion

Ringed kingfisher flying with wings extended Ringed Kingfisher (Megaceryle torquata) (7222796522) (cropped).jpg
Ringed kingfisher flying with wings extended

The anatomy of ringed kingfishers prevents efficient terrestrial movements. Individuals shuffle into and out of nesting burrows, so displacing between branches is difficult for this species. They possess strong wings that beat very slowly as a result of their size. They are able to fly over land for long periods of time in comparison to other species of kingfishers. [17]

Breeding

Mating ritual

A mating ritual involves the male ringed kingfisher offering fish to the female before copulation. The pair performs, wherein the male creates calls circling above the water, while dropping into the water. [18] This process lasts for a short time. [18]

Parental behavior

Female and male ringed kingfishers incubate their eggs while performing other duties equally. Short foraging breaks are taken during late afternoon since incubation periods are long. Each individual takes turns during the morning. Incubating birds are capable of finding prey by regurgitating their undigested food to attract flies in their burrows. [9]

Vocalization

Female ringed kingfisher diving for prey Ringed Kingfisher (Megaceryle torquata) female diving for a piranha thrown in the water by our boatman ... (30908493913).jpg
Female ringed kingfisher diving for prey

Ringed kingfishers have louder and lower-pitched calls compared to the belted kingfishers. [19] Captured Juveniles have been heard screaming, giving a klek or kek call. [9] The same call is heard during human intervention or other disturbances. A softer klek is produced by the adult to signal its incubating partner. Its common vocalizations are described as rattles. [20]

Foraging behavior

Ringed kingfishers can perch for several hours on trees while watching for prey in fresh water. [9] Belted kingfishers perch for only a few moments. Ringed kingfishers have also been observed to forage in marine water. They catch their prey by diving from a perch. [20]

Ringed kingfisher with captured armored catfish Ringed Kingfisher (Ceryle torquata) with small armoured catfish (Loricariidae)... (27876630134).jpg
Ringed kingfisher with captured armored catfish

Diet

The ringed kingfisher's diet is largely dependent on fish, but they sometimes target crabs and other crustaceans. [21] Fish consumed include several species from the families Characidae and Cichlidae. [22]

Threats

Diseases

A parasitic infection caused by Pulchrosopa pulchrosopa, a type of flatworm, causes internal damage in the respiratory system of ringed kingfishers. Infected individuals were examined, with the species found in their lungs, tracheae, and coelomic cavities. The parasite migrates to the lungs as the host experiences stressful or immunosuppressive periods. The parasite also causes significant damage to tissues due to its migration to the lungs. [23]

Predation

Predators of ringed kingfishers include the white-tailed hawk, sharp-shinned hawk, bald eagle, golden eagle, and peregrine falcon. [13]

Conservation status

The IUCN considers the ringed kingfisher to be of least concern. Increasing population trends indicate that the species is not vulnerable, as it is widespread and has a large habitat distribution and breeding ranges. [1]

Related Research Articles

<span class="mw-page-title-main">Kingfisher</span> Family of birds

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, but also can be seen in Europe. They can be found in deep forests near calm ponds and small rivers. The family contains 116 species and is divided into three subfamilies and 19 genera. All kingfishers have large heads, long, sharp, pointed bills, short legs, and stubby tails. Most species have bright plumage with only small differences between the sexes. Most species are tropical in distribution, and a slight majority are found only in forests.

<span class="mw-page-title-main">Belted kingfisher</span> Species of bird

The belted kingfisher 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.

<span class="mw-page-title-main">Water kingfisher</span> Subfamily of birds

The water kingfishers or Cerylinae are one of the three subfamilies of kingfishers, and are also known as the cerylid kingfishers. All six American species are in this subfamily.

<span class="mw-page-title-main">Bachman's warbler</span> Potentially extinct bird species

Bachman's warbler is a likely extinct passerine migratory bird. This warbler was a migrant, breeding in swampy blackberry and cane thickets of the Southeastern and Midwestern United States and wintering in Cuba. There are some reports of the bird from the twenty-first century, but none are widely accepted. Some authorities accept a Louisiana sighting in August 1988 as confirmed, but the last uncontroversial sightings date to the 1960s.

<span class="mw-page-title-main">Tody</span> Family of birds

The todies are a family, Todidae, of tiny Caribbean birds in the order Coraciiformes, which also includes the kingfishers, bee-eaters and rollers. The family has one living genus, Todus, and one genus known from the fossil record, Palaeotodus.

<span class="mw-page-title-main">Green-breasted mango</span> Species of hummingbird

The green-breasted mango or Prevost's mango is a species in subfamily Polytminae of the hummingbird family Trochilidae. It is found from eastern Mexico south through most of Central America, in Colombia and Venezuela, and as a vagrant in the United States.

<span class="mw-page-title-main">Green kingfisher</span> Species of bird

The green kingfisher is a species of "water kingfisher" in the subfamily Cerylinae of the family Alcedinidae. It is found from southern Texas in the United States south through Central America, in every mainland South American country except Chile and Trinidad and Tobago.

<span class="mw-page-title-main">American green kingfisher</span> Genus of birds

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.

<i>Megaceryle</i> Genus of birds

Megaceryle is a genus of very large kingfishers. They have a wide distribution in the Americas, Africa, and Southeast Asia.

<span class="mw-page-title-main">White-headed buffalo weaver</span> Species of bird

The white-headed buffalo weaver or white-faced buffalo-weaver is a species of passerine bird in the family Ploceidae native to East Africa. The buffalo part of its name derives from its habit of following the African buffalo, feeding on disturbed insects. Two subspecies are recognized.

<span class="mw-page-title-main">Audubon's oriole</span> Species of bird

Audubon's oriole, formerly known as the black-headed oriole, is a New World passerine inhabiting the forests and thickets of southeastern Texas and the Mexican coast. It is the only species to have a black hood and yellow body. It is divided into four subspecies and two allopatric breeding ranges. The westernmost range extends from Nayarit south to southern Oaxaca, whereas the eastern range stretches from the lower Rio Grande valley to northern Querétaro. The most common in the western range are the subspecies I. g. dickeyae and I. g. nayaritensis; I. g. graduacauda and I. g. audubonii can be found in the eastern range. Like most Central American birds, it is not a migratory species and does not display significant sexual dimorphism. DNA analysis of the ND2 and cyt-b genes strongly suggests that I. graduacauda is most closely related to I. chrysater, the yellow-backed oriole. It is a member of the genus Icterus and therefore should not be confused with the Old World orioles.

<span class="mw-page-title-main">Tropical boubou</span> Species of bird

The tropical boubou or bell shrike is a medium-sized passerine bird of sub-Saharan Africa. This very diverse "species" with its numerous subspecies and morphs has since long posed a taxonomic problem, and recent research suggests it is a cryptic species complex that has now been split into several species.

<span class="mw-page-title-main">Moustached kingfisher</span> Species of bird

The moustached kingfisher, also called Bougainville moustached kingfisher, is a species of bird in the family Alcedinidae. It is endemic to Bougainville Island in Papua New Guinea. An estimated 250–1,000 mature individuals are left.

<span class="mw-page-title-main">Spotted wood kingfisher</span> Species of bird

The spotted wood kingfisher or spotted kingfisher is a species of bird in the family Alcedinidae. It is endemic to the Philippines where its natural habitat is subtropical or tropical moist lowland forests.

<span class="mw-page-title-main">Oriental dwarf kingfisher</span> Species of bird

The oriental dwarf kingfisher, also known as the black-backed kingfisher or three-toed kingfisher, is a pocket-sized bird in the family Alcedinidae. This tropical kingfisher is a partial migrant that is endemic across much of the Indian Subcontinent and Southeast Asia. It resides in lowland forests, typically near streams or ponds, where it feeds upon insects, spiders, worms, crabs, fish, frogs, and lizards. This small bird is easily distinguishable from other birds in its range due to its red bill, yellow-orange underparts, lilac-rufous upperparts, and blue-black back.

<span class="mw-page-title-main">Andaman drongo</span> Species of bird

The Andaman drongo is a species of bird in the family Dicruridae. The species is endemic to the Andaman Islands of the Indian Ocean. There are two subspecies, the nominate race being found across the main islands of the archipelago, and the race dicruriformis occurring on Great Coco Island and Table Island in the north of the chain

<span class="mw-page-title-main">Slaty-backed forktail</span> Species of bird

The slaty-backed forktail is a species of forktail in the family Muscicapidae. A slim, medium-sized forktail, it is distinguished from similar species by its slate grey forehead, crown, and mantle. It has a long and deeply forked tail banded in black and white, a white rump, and a white bar across its primary feathers; the rest of the plumage is predominantly white. The sexes look alike. The bird frequents the edges of fast-flowing streams and rivers, where it hunts small invertebrates by hopping among rocks or flying out over the water. It breeds between February and July, laying 3–4 pinkish, bluish, or white eggs; both sexes incubate the eggs.

<span class="mw-page-title-main">Archbold's newtonia</span> Species of bird

Archbold's newtonia is a species of bird in the family Vangidae. It is endemic to Madagascar. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland. The birds have a greyish brown back and tail, with a rufous forecrown and a buffy white belly, throat, and undertail coverts. They have a conspicuous rufous eye-ring, accompanied with a black bill and pale yellow eyes. The species is sexually monomorphic, and there is no major difference between the sexes. There is no breeding plumage for the males.

<span class="mw-page-title-main">Pale-footed swallow</span> Species of bird

The pale-footed swallow is a species of bird in the family Hirundinidae. It is found in the northern Andes, from Venezuela to Bolivia. It is monotypic.

The Mangareva kingfisher, also known as Tuamotu kingfisher, is a species of kingfisher in the family Alcedinidae, endemic to Niau in French Polynesia. It is classified as critically endangered.

References

  1. 1 2 BirdLife International (2020). "Megaceryle torquata". IUCN Red List of Threatened Species . 2020: e.T22683634A168873464. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22683634A168873464.en . Retrieved 11 November 2021.
  2. Gill F, D Donsker & P Rasmussen (Eds). 2020. IOC World Bird List (v10.2). doi : 10.14344/IOC.ML.10.2.
  3. "Megaceryle torquata". Avibase.
  4. 1 2 3 4 "Ringed Kingfisher - Introduction". birdsna.org. Birds of North America Online. Retrieved 2018-10-15.
  5. Oberholser, H. C. (1974). The bird life of Texas. University of Texas Press, Austin, TX.
  6. Sick, H. (1993). Birds in Brazil: a natural history. Princeton, NJ: Princeton Univ. Press.
  7. 1 2 Hamas, M.J. (1994). "Belted Kingfisher (Ceryle alcyon)." In The birds of North America, no. 84., edited by A. Poole and F. Gill. Washington, D.C: Acad. Nat. Sci., Philadelphia, PA, and Am. Ornithol. Union.
  8. White, Ariel E.; Cristol, Daniel A. (June 2014). "Plumage Coloration in Belted Kingfishers (Megaceryle alcyon) At a Mercury-contaminated River". Waterbirds. 37 (2): 144–152. doi: 10.1675/063.037.0203 . ISSN   1524-4695. S2CID   86165351.
  9. 1 2 3 4 Skutch, A.F. (1972). "Studies of tropical American birds". Publ. Nuttall Ornithol. Club. no. 10.
  10. Sibley, C.G. and J.E. Ahlquist (1990). Phylogeny and classification of birds: a study in molecular evolution. New Haven: Yale Univ. Press.
  11. Moyle, R.G. (2006). "A molecular phylogeny of kingfishers (Alcedinidae) with insights into early biogeographic history". Auk no. 123 (2):487-499.
  12. 1 2 Ridgway, R. (1914b). "The birds of North and Middle America". Pt. 6. Bull. U.S. Natl. Mus.. no. 50.
  13. 1 2 3 4 5 6 7 Remsen, Jr., J. V. (1991). "Community ecology of Neo-tropical kingfishers". Univ. of Calif. Publ. Zool. no. 124.
  14. Ridgely, R.S. and J. Gwynne (1989). A Guide to the Birds of Panama, with Costa Rica, Nicaragua, and Honduras. 2nd ed. Princeton, NJ: Princeton Univ. Press.
  15. 1 2 Bendire, C. (1895). "Life histories of North American birds, from the parrots to the grackles, with special reference to their breeding habits and eggs". U.S. Natl. Mus. Spec. Bull. no. 3.
  16. Fry, C. H. and K. Fry (1992). Kingfishers, bee-eaters and rollers: A Handbook. Princeton, New Jersey: Princeton University Press.
  17. Ridgely, R.S. and P.J. Greenfield (2001). The birds of Ecuador, Vol. 2: Field guide. Ithaca, NY: Cornell Univ. Press.
  18. 1 2 Richmond, C.W. (1893). "Notes on a collection of Birds from Eastern Nicaragua and the Rio Frio, Costa Rica, with notes, and a description of a supposed new Trogon". P. U.S. Mus. no. XVI:479-532.
  19. Howell, S. N. G. and S. Webb (1995). A guide to the birds of Mexico and northern Central America. New York: Oxford University Press.
  20. 1 2 "Ringed Kingfisher". Audubon. 2014-11-13. Retrieved 2018-10-15.
  21. Jackson, D. (2006). "Aegla Leach (Crustacea: Decapoda) in the diet of the ringed kingfisher, Ceryle torquata (Linné) (Alcedinidae)". Boletín Chileno de Ornitología. no. 12:26-27.
  22. Willard, D.E. (1985). "Comparative feeding ecology of twenty-two tropical piscivores". Ornithol. Monog. no. 36.
  23. Merino, S. Javier Martínez, J. Alcántara, G. and Navarro, M. (2003). Pulchrosopa pulchrosoma (Trematoda: Cathaemasiidae) in Ringed kingfishers (Megaceryle torquata torquata) from Iquitos, Peru: with inferences on life-cycle features. Avian Pathology. 32(4):351-354.