Macaw

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Macaw
A blue-and-yellow macaw (Ara ararauna)
A blue-and-yellow macaw (Ara ararauna)
Scientific classificationEdit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Psittaciformes
Family: Psittacidae
Subfamily: Arinae
Tribe: Arini
Groups included

Anodorhynchus
Ara
Cyanopsitta
Primolius
Orthopsittaca
Diopsittaca

Macaws are a group of New World parrots that are long-tailed and often colorful.[1] They are popular in aviculture or as companion parrots, although there are conservation concerns about several species in the wild.

Biology

Of the many different

Cyanopsitta, Primolius, Orthopsittaca, and Diopsittaca. Previously, the members of the genus Primolius were placed in Propyrrhura, but the former is correct in accordance with ICZN rules.[2] In addition, the related macaw-like thick-billed parrot is sometimes referred to as a "macaw", although it is not phylogenetically considered to be a macaw species. Macaws are native to Central America and North America (only Mexico), South America, and formerly the Caribbean. Most species are associated with forests, but others prefer woodland or savannah-like habitats.[3]

Proportionately larger beaks, long tails, and relatively bare, light-coloured medial (facial patch) areas distinguish macaws from other parrots. Sometimes the facial patch is smaller in some species and limited to a yellow patch around the eyes and a second patch near the base of the beak in the members of the genus Anodorhynchus. A macaw's facial feather pattern is as unique as a fingerprint.[4]

The largest macaws are the

mini-macaws of the genera Cyanopsitta, Orthopsittaca and Primolius are significantly smaller than the members of Anodorhynchus and Ara. The smallest member of the family, the red-shouldered macaw, is no larger than some parakeets of the genus Aratinga.[3]

Macaws, like other

zygodactyl, having their first and fourth toes pointing backward.[3]

Species in taxonomic order

There are 19 species of macaws, including extinct and critically endangered species.[5] In addition, there are several hypothetical extinct species that have been proposed based on very little evidence.[6]

Glaucous macaw (behind hyacinth macaw) and other macaws
From L to R: scarlet macaw, blue-and-yellow macaw, and military macaw
Blue-and-yellow macaw (left) and blue-throated macaw (right)

Hypothetical extinct species

Several

hypothetical extinct species of macaws have been postulated based on little evidence, and they may have been subspecies, or familiar parrots that were imported onto an island and later wrongly presumed to have a separate identity.[6]

Extinctions and conservation status

The Brazilian coast in the 1502 Cantino planisphere, possibly the earliest European depiction of macaws

The majority of macaws are now endangered in the wild and a few are extinct. The Spix's macaw is now probably extinct in the wild. The glaucous macaw is also probably extinct, with only two reliable records of sightings in the 20th century. The greatest problems threatening the macaw population are the rapid rate of deforestation and illegal trapping for the bird trade.[8] Prehistoric Native Americans in the American Southwest farmed macaws in establishments known as "feather factories".[9]

International trade of all macaw species is regulated by the Convention on International Trade in Endangered Species of Wild Flora and Fauna (CITES). Some species of macaws—the scarlet macaw (Ara macao) as an example—are listed in the CITES Appendix I and may not be lawfully traded for commercial purposes. Other species, such as the red-shouldered macaw (Diopsittaca nobilis), are listed in Appendix II and may legally be traded commercially provided that certain controls are in place, including a non-detriment finding, establishment of an export quota, and issuing of export permits.

Hybrids

Sometimes macaws are hybridized for the pet trade.

Aviculturists have reported an over-abundance of female blue-and-yellow macaws in captivity, which differs from the general rule with captive macaws and other parrots, where the males are more abundant.[

miliquin macaw (harlequin and military macaws).[12]

Diet and clay licks

Macaws and Southern mealy amazons at a clay lick in Tambopata National Reserve, Peru

Macaws eat a variety of foods including seeds, nuts, fruits, palm fruits, leaves, flowers, and stems. Safe vegetables include asparagus, beets, bell peppers, broccoli, butternut, carrots, corn on the cob, dandelion greens, collard greens, hot peppers, spinach, sweet potatoes, tomatoes and zucchini. Wild species may forage widely, over 100 km (62 mi) for some of the larger species such as Ara araurana (blue and yellow macaw) and Ara ambigua (great green macaw), in search of seasonally available foods.

Some foods eaten by macaws in certain regions in the wild are said to contain

NaCl) oceanic aerosols are the main source of environmental sodium near coasts and this decreases drastically farther inland.[20]

Clay-eating behaviour by macaws is not seen outside the western Amazon region, even though macaws in these areas consume some toxic foods such as the seeds of Hura crepitans, or

sandbox tree, which have toxic sap. Species of parrot that consume more seeds, which potentially have more toxins, do not use clay licks more than species that eat a greater proportion of flowers or fruit in their diets.[20]

Studies at TRC have shown a correlation between clay-lick use and the breeding season.

geophagy
during this period as peak usage is after the hatching of eggs.

Another theory is that the birds, as well as other herbivorous animals, use the clay licks as a source of

cobalamin
, otherwise known as vitamin B12.

Relationship with humans

Macaws and their feathers have attracted the attention of people throughout history, most notably in

Wari', and Nazca. Macaw feathers were highly desired for their bright colors and acquired through hunting and trade.[22] Feathers were often used as adornment and were found at both ceremonial and burial sites. South American weavers have used their feathers to create a number of textiles, most notably feathered panels and tabards. Due to the fragile nature of the feathers, many of these pieces have begun to deteriorate over time.[23]

Gallery

References

  1. ^ "macaw". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  2. ^ South American Classification Committee Archived 2007-02-24 at the Wayback Machine To reassign the genus of three macaws.
  3. ^ a b c Abramson, J., Speer, B. L., & Thomsen, J.B. 1999, "The Large Macaws, Their Care and Breeding", Raintree Publications: CA
  4. ^ "Facial fingerprint". webparrots.com. Archived from the original on 2017-12-10. Retrieved 2008-07-29.
  5. ^ "Zoological Nomenclature Resource: Psittaciformes (Version 9.004)". www.zoonomen.net. 2008-07-05.
  6. ^ .
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  10. ^ "Miligold Macaw, Hybrid Cross between a Military Macaw and a Blue and Gold Macaw". Animal-world.com. Retrieved 2015-03-14.
  11. ^ Macaws, Hybrid Names, and pages on individual hybrids.
  12. ^ Vargas, Theresa. "An unlikely parrot love story may have resulted in a new species". Washington Post. Retrieved 17 January 2023.
  13. ^ Gilardi, James D. (1996). Ecology of Parrots in the Peruvian Amazon: Habitat Use, Nutrition, and Geophagy (Ph.D.). Davis, California: University of California at Davis.
  14. ^ Munn, C. A. (January 1994). "Macaws: winged rainbows". National Geographic. 185 (1): 118–140.
  15. S2CID 83509448
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  20. ^ a b Lee, A. T. K. (2010). Parrot Claylicks: Distribution, Patterns of Use and Ecological Correlates from a Parrot Assemblage in Southeastern Peru (Ph.D.). Manchester Metropolitan University.
  21. ^ Brightsmith, D. J. 2006. "The psittacine year: what drives annual cycles in Tambopata's parrots?" Archived 2015-09-06 at the Wayback Machine Proceedings of the Loro Parque International Parrot Symposium, Tenerife, Spain.
  22. ^ "Gold and the Incas - LEARN MORE| | Plume". nga.gov.au. Retrieved 2019-11-22.
  23. ^ "When Feathers Were the Treasures of the Rainforest". www.metmuseum.org. Retrieved 2019-11-22.

External links

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