Chachalaca Explained

Chachalacas are galliform birds from the genus Ortalis. These birds are found in wooded habitats in the far southern United States (Texas),[1] [2] Mexico, and Central and South America. They are social, can be very noisy and often remain fairly common even near humans, as their relatively small size makes them less desirable to hunters than their larger relatives. As agricultural pests, they have a ravenous appetite for tomatoes, melons, beans, and radishes and can ravage a small garden in short order. They travel in packs of six to twelve.[3] Their nests are made of sticks, twigs, leaves, or moss and are generally frail, flat structures only a few feet above the ground. During April, they lay from three to five buffy white eggs, the shell of which is very rough and hard.[4] They somewhat resemble the guans, and the two have commonly been placed in a subfamily together, though the chachalacas are probably closer to the curassows.[5]

Taxonomy

The genus Ortalis was introduced (as Ortalida) by the German naturalist Blasius Merrem in 1786 with the little chachalaca (Ortalis motmot) as the type species.[6] [7] The generic name is derived from the Ancient Greek word όρταλις, meaning "pullet"[8] or "domestic hen."[9] The common name derives from the Nahuatl verb chachalaca, meaning "to chatter." With a glottal stop at the end, chachalacah was an alternate name for the bird known as the chachalahtli. All these words likely arose as an onomatopoeia for the four-noted cackle of the plain chachalaca (O. vetula).[10] The genus contains 16 species.[11]

Mitochondrial and nuclear DNA sequence data tentatively suggest that the chachalacas emerged as a distinct lineage during the Oligocene, somewhere around 40–20 mya, possibly being the first lineage of modern cracids to evolve; this does agree with the known fossil record – including indeterminate, cracid-like birds – which very cautiously favors a north-to-south expansion of the family.[5]

Species

Image Common Name Scientific name Distribution
Ortalis vetulaSouthern Texas, Mexico, the Yucatán Peninsula, Belize, northern Guatemala, northern Honduras and just into the north central part of Nicaragua
Ortalis cinereicepseastern Honduras to northwestern Colombia (from South Chocó to the upper Atrato)
Ortalis garrulaColombia
Ortalis ruficaudanortheast Colombia and Venezuela, Tobago, Saint Vincent and the Grenadines, Grenada
Ortalis erythropteraColombia and adjacent Ecuador and Peru
Ortalis wagleriMexico
Ortalis poliocephalaMexico, from Jalisco to Oaxaca
Ortalis canicollisArgentina, Bolivia, Brazil, Paraguay, and Uruguay
Ortalis leucogastraCosta Rica, El Salvador, Guatemala, Honduras, Mexico, and Nicaragua
Ortalis columbianaColombia.
Ortalis guttatawestern Amazon Basin
Ortalis araucuanAtlantic forests in eastern Brazil
Ortalis squamatasoutheastern Brazil
Ortalis motmotnorthern Brazil, French Guiana, Suriname, Guyana and Venezuela
Ortalis ruficepsnorth central Brazil
Ortalis superciliarisBrazil

Prehistoric species

The cracids have a very poor fossil record, essentially being limited to a few chachalacas. The prehistoric species of the present genus, however, indicate that chachalacas most likely evolved in North or northern Central America:

The Early Miocene fossil Boreortalis from Florida is also a chachalaca; it may actually be referrable to the extant genus.

Notes and References

  1. Marion, Wayne R.. Status of the Plain Chachalaca in South Texas. The Wilson Bulletin. September 1974. 86. 3. 200–205. 4160499.
  2. Book: Sherr, Evelyn B.. Marsh Mud and Mummichogs: An Intimate Natural History of Coastal Georgia. 2015. U. Of Georgia Press. 96. live. https://web.archive.org/web/20150723091856/http://www.ugapress.org/index.php/books/index/marsh_mud_and_mummichogs. 2015-07-23. In the 1920s Howard E. Coffin introduced a breeding population of chachalacas to Sapelo Island, and this breeding population still exists.
  3. Web site: Gray-headed Chachalaca. neotropical.birds.cornell.edu/Species-Account/nb/home. January 28, 2018.
  4. Web site: THE BIRD BOOK .
  5. Pereira . S.L. . Baker . A.J. . Wajntal . A. . 2002 . Combined nuclear and mitochondrial DNA sequences resolve generic relationships within the Cracidae (Galliformes, Aves) . Systematic Biology . 51 . 6 . 946–958 . 10.1080/10635150290102519 . 12554460 . free .
  6. Book: Merrem, Blasius . Blasius Merrem . 1786 . Avium rariorum et minus cognitarum : icones et descriptiones collectae et e germanicis latinae factae . la . Lipsiae [Leipzig] . Ex Bibliopolio Io. Godofr. Mülleriano . 40 .
  7. Book: Peters . James Lee . James L. Peters . 1934 . Check-List of Birds of the World . 2 . Harvard University Press . Cambridge, Massachusetts . 16 .
  8. Book: Waue, Roland H. . Heralds of Spring in Texas . 1999 . 9780890968796 . Texas A&M University Press . 18 . live . https://web.archive.org/web/20171127040905/https://books.google.com/books?id=gNop2jEFXNUC& . 2017-11-27 .
  9. Book: Arnott, William Geoffrey . Birds in the Ancient World from A to Z . Routledge . 978-0-415-23851-9 . 2007 . 235 . live . https://web.archive.org/web/20140611094643/http://books.google.com/books?id=b4pN4OApWw4C . 2014-06-11 .
  10. Book: Leopold, Aldo Starker . Wildlife of Mexico: the Game birds and Mammals . 1972 . University of California Press . 978-0-520-00724-6 . 212 . registration .
  11. Web site: Gill . Frank . Frank Gill (ornithologist) . Donsker . David . Rasmussen . Pamela . Pamela Rasmussen . 2020 . Pheasants, partridges, francolins . IOC World Bird List Version 10.2 . International Ornithologists' Union . 2 October 2020 .
  12. Wetmore, Alexander. 1923. Avian Fossils from the Miocene and Pliocene of Nebraska. Bulletin American Museum of Natural History XLVIII pp. 483-457.Web access