Tres Marías amazon

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Tres Marías amazon
Amazona oratrix -Cougar Mountain Zoological Park -hand-8a.jpg
Tres Marías amazon at Cougar Mountain Zoological Park
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Psittaciformes
Family: Psittacidae
Genus: Amazona
Species:
A. tresmariae
Binomial name
Amazona tresmariae
Nelson, 1900
Synonyms
  • Amazona oratrix tresmariae

The Tres Marías amazon (Amazona tresmariae) is an Amazon parrot in the family Psittacidae. Many authorities consider it a subspecies of the yellow-headed amazon (Amazona oratrix), including the American Ornithological Society, but is afforded full species status by the International Ornithological Congress. It is endemic to the Islas Marías off the Pacific coast of Mexico.

Taxonomy

The Tres Marías amazon was formally described in 1900 by the American naturalist Edward William Nelson. He considered it as a subspecies of the yellow-headed amazon (Amazona oratrix) and introduced the trinomial name Amazona oratrix tresmariae.[1] Frank Gill, Pamela Rasmussen and David Donsker in the list maintained on behalf of the International Ornithological Committee (IOC) treat the Tres Marías amazon as a full species based on a 2004 study that analysed differences in mitochondrial DNA sequences.[2][3] Other ornithologists have chosen to retain this parrot as a subspecies.[4][5][6][7] The species is monotypic: no subspecies are recognised.[2]

Description

It has an all-yellow head, reaching to the foreneck and upper breast, and a yellow-tipped tail. It has white eyerings and orange-brown eyes. It has small red patches on its shoulders. Upperparts are paler green than Amazona oratrix and the underparts are blue-washed.[8][9]

In aviculture, a variety of yellow-headed amazon known as "magna" exists, which has been selectively-bred to maximize the yellow coloration of the head. Magna birds closely resemble Tres Marías amazons.[10]

References

  1. ^ Nelson, E. W. (1900). "Descriptions of thirty new North American birds, in the Biological Survey Collection" (PDF). The Auk. 17 (3): 253–270. doi:10.2307/4069117.
  2. ^ a b Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2022). "Parrots, cockatoos". IOC World Bird List Version 12.1. International Ornithologists' Union. Retrieved 23 March 2022.
  3. ^ Eberhard, Jessica R.; Bermingham, Elredge (2004). "Phylogeny and biogeography of the Amazona ochrocephala (Aves: Psittacidae) complex". The Auk. 121 (2): 318–332. doi:10.1093/auk/121.2.318.
  4. ^ Dickinson, E.C.; Remsen, J.V., Jr., eds. (2013). The Howard & Moore Complete Checklist of the Birds of the World. Vol. 1: Non-passerines (4th ed.). Eastbourne, UK: Aves Press. p. 361. ISBN 978-0-9568611-0-8.
  5. ^ Clements, J.F.; Schulenberg, T.S.; Iliff, M.J.; Billerman, S.M.; Fredericks, T.A.; Gerbracht, J.A.; Lepage, D.; Sullivan, B.L.; Wood, C.L. (2021). "The eBird/Clements Checklist of Birds of the World: v2021". Retrieved 23 March 2022.
  6. ^ Chesser, R.T.; Billerman, S.M.; Burns, K.J.; Cicero, C.; Dunn, J.L.; Hernández-Baños, B.E.; Kratter, A.W.; Lovette, I.J.; Mason, N.A.; Rasmussen, P.C.; Remsen, J.V.Jr.; Stotz, D.F.; Winker, K. (2021). "Checklist of North and Middle American Birds". American Ornithological Society. Retrieved 23 March 2022.
  7. ^ "Yellow-headed Amazon Amazona oratrix". Data Zone. BirdLife International. Retrieved 23 March 2022.
  8. ^ Stager, Kenneth E. (1957). "The avifauna of the Tres Marias Islands, Mexico" (PDF). The Auk. 74 (4): 413–432. doi:10.2307/4081741.
  9. ^ Grant, P.R. (1965). "A systematic study of the terrestrial birds of the Tres Marias Islands, Mexico" (PDF). Postilla. 90: 1–106 [17–18].
  10. ^ "Where are they now? By the Feather Tree".

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