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Lifespan, longevity, and ageing

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Maximum longevity: 7.5 years (wild) Observations: Banded male was shot dead when it was at least 7.5 years of age (http://bna.birds.cornell.edu/).
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Mangrove rail

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The mangrove rail (Rallus longirostris) is a species of bird in subfamily Rallinae of family Rallidae, the rails, gallinules, and coots. It is found in Central and South America.[2][3]

Taxonomy and systematics

The mangrove rail was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in 1781 in his Histoire Naturelle des Oiseaux from a specimen obtained in French Guiana.[4] The bird was also illustrated in a hand-colored plate engraved by François-Nicolas Martinet in the Planches Enluminées D'Histoire Naturelle which was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text.[5] Neither the plate caption nor Buffon's description included a scientific name but in 1783 the Dutch naturalist Pieter Boddaert coined the binomial name Rallus longirostris in his catalogue of the Planches Enluminées.[6] The genus Rallus had been erected in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae.[7] The specific epithet longirostris combines the Latin longus meaning "long" and -rostris meaning "-billed".[8]

The mangrove rail was formerly considered to be conspecific with what are now the Aztec rail (R. tenuirostris), Ridgway's rail (R. obsoletus), the king rail (R. elegans), and the clapper rail (R. crepitans), and more recently as conspecific with Ridgeway's and king rails. Worldwide taxonomic systems now agree that each of the five is a separate species based on a 2013 study that described their different genetics and morphologies.[9][2][10][3] Many systems treat it as most closely related to Ridgway's rail.[11]

Eight subspecies of mangrove rail are recognized:[2]

  • R. l. phelpsi Wetmore, 1941
  • R. l. dillonripleyi Phelps Jr. & Aveledo, 1987
  • R. l. margaritae Zimmer & Phelps, 1944
  • R. l. pelodramus Oberholser, 1937
  • R. l. longirostris Boddaert, 1783
  • R. l. crassirostris Lawrence, 1871
  • R. l. cypereti Taczanowski, 1878
  • R. l. berryorum J.M. Maley, J.E. McCormack, W.L.E. Tsai, E.M. Schwab, J. Van Dort, R.C. Roselvy, & M.D. Carling, 2016[12]

Description

The mangrove rail is about 33 cm (13 in) long and weighs 260 to 310 g (9.2 to 11 oz). It has a long, slender, and slightly decurved bill with a brownish maxilla and an orange-yellow mandible. Its legs are light orange-red. The sexes have the same plumage. Adults of the nominate subspecies R. l. longirostris have dull gray-brown upperparts with darker centers to the feathers. They have a white loral streak on their pale gray face, a whitish throat, tawny buff neck and breast with a white center to the belly, and black and white bars on the flanks. Juveniles are similar to adults but are darker and duller.[13]

Subspecies R. l. phelpsi has a darker crown and upperparts and paler underparts than the nominate. R. l. margaritae is the darkest subspecies; it is smaller than the nominate and has bolder bars on the flanks. R. l. pelodramus is similar in size to margaritae but paler. The dark markings on the upperparts of R. l. cypereti are lighter than those of the nominate and the dark flank bars are also lighter.[13]

Distribution and habitat

The mangrove rail is found discontinuously on the Pacific coast of Central America and the Pacific, Caribbean, and Atlantic coasts of South America. It inhabits coastal mangrove swamps and brackish and salt marshes. The subspecies are distributed thus:[10][13]

Behavior

Movement

The mangrove rail is sedentary.[13]

Feeding

The mangrove rail forages near cover, mostly at low tide and during the morning and early evening. It is believed to hunt by sight, probing sand and mud, tossing aside leaf litter to expose prey, catching small fish in shallow water, and scavenging dead fish. It has a very diverse diet that includes animal prey such as crustaceans (especially crabs and crayfish), molluscs, leeches, aquatic and terrestrial insects, fish, and amphibians. It also feeds on plant matter such as seeds, berries, and tubers, especially in winter.[13]

Breeding

The mangrove rail's breeding season varies geographically but in most areas includes May and June. It makes a nest of sticks and dead leaves near water on the ground or in vegetation. The clutch size is three to seven eggs. Both sexes incubate the eggs for the period of 18 to 29 days.[13]

Vocalization

The mangrove rail's main vocalization is a "[l]oud clattering 'kek-kek-kek…'" that accelerates and then slows; it makes this call mostly at dawn and dusk. Both sexes make "a series of loud, rapid 'kak' notes" as an "advertising call". Another call is a "drawn-out low 'raaaaa'."[13]

Status

The IUCN has assessed the mangrove rail as being of Least Concern. It has a very large range but its population size is not known and is believed to be decreasing. No immediate threats have been identified.[1] A longer term threat is "the degradation and loss of mangroves and other wetland habitats."[13]

References

  1. ^ a b BirdLife International (2016). "Rallus longirostris". IUCN Red List of Threatened Species. 2016: e.T62154828A95190148. doi:10.2305/IUCN.UK.2016-3.RLTS.T62154828A95190148.en. Retrieved 13 November 2021.
  2. ^ a b c Gill, F.; Donsker, D.; Rasmussen, P., eds. (August 2022). "Finfoots, flufftails, rails, trumpeters, cranes, Limpkin". IOC World Bird List. v 12.2. Retrieved August 9, 2022.
  3. ^ a b HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022
  4. ^ Buffon, Georges-Louis Leclerc de (1781). "Le râle a long bec". Histoire Naturelle des Oiseaux (in French). Vol. 15. Paris: De L'Imprimerie Royale. pp. 251–252.
  5. ^ Buffon, Georges-Louis Leclerc de; Martinet, François-Nicolas; Daubenton, Edme-Louis; Daubenton, Louis-Jean-Marie (1765–1783). "Râle à long bec, de Cayenne". Planches Enluminées D'Histoire Naturelle. Vol. 9. Paris: De L'Imprimerie Royale. Plate 849.
  6. ^ Boddaert, Pieter (1783). Table des planches enluminéez d'histoire naturelle de M. D'Aubenton : avec les denominations de M.M. de Buffon, Brisson, Edwards, Linnaeus et Latham, precedé d'une notice des principaux ouvrages zoologiques enluminés (in French). Utrecht. p. 52, Number 849.
  7. ^ Linnaeus, Carl (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1 (10th ed.). Holmiae:Laurentii Salvii. p. 153.
  8. ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 230. ISBN 978-1-4081-2501-4.
  9. ^ Maley, J.M. & Brumfield, R.T. (2013). "Mitochondrial and Next-Generation Sequence Data used to Infer Phylogenetic Relationships and Species Limits in the Clapper/King Rail Complex". The Condor. 115 (2): 316–329. doi:10.1525/cond.2013.110138. S2CID 85989924.
  10. ^ a b Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of birds of the world: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ retrieved November 10, 2022
  11. ^ del Hoyo, J., N. Collar, and D. A. Christie (2020). Aztec Rail (Rallus tenuirostris), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.kinrai2.01 retrieved November 22, 2022
  12. ^ Maley, J.M.; McCormack, J.E.; Tsai, W.L.E.; Schwab, E.M.; Van Dort, J.; Juárez, R.C.; Carling, M.D. (2016). "Fonseca Mangrove Rail: a new subspecies from Honduras". Western Birds. 47 (4): 1–14.
  13. ^ a b c d e f g h Taylor, B. and D. A. Christie (2020). Mangrove Rail (Rallus longirostris), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.manrai1.01 retrieved November 22, 2022

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Mangrove rail: Brief Summary

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The mangrove rail (Rallus longirostris) is a species of bird in subfamily Rallinae of family Rallidae, the rails, gallinules, and coots. It is found in Central and South America.

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Distribution

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Caribbean; North America; from northern Cape Cod to the Gulf of Mexico; very rare north of Cape Cod

Reference

North-West Atlantic Ocean species (NWARMS)

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Kennedy, Mary [email]