The Jamaican poorwill (''Siphonorhis americana''), also known as the Jamaican pauraque or Jamaican least pauraque, is a species of

nightjar Nightjars are medium-sized nocturnal or crepuscular birds in the family Caprimulgidae and order Caprimulgiformes, characterised by long wings, short legs, and very short bills. They are sometimes called bugeaters, their primary source of food ...

in the family Caprimulgidae. It is (or was)

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

Jamaica Jamaica is an island country in the Caribbean Sea and the West Indies. At , it is the third-largest island—after Cuba and Hispaniola—of the Greater Antilles and the Caribbean. Jamaica lies about south of Cuba, west of Hispaniola (the is ...

and has not been recorded since 1860.Dreelin, A. (2020). Jamaican Pauraque (''Siphonorhis americana''), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.jampau.01 retrieved October 13, 2021

Taxonomy and systematics

The first

formal description A species description is a formal scientific description of a newly encountered species, typically articulated through a scientific publication. Its purpose is to provide a clear description of a new species of organism and explain how it differ ...

of the Jamaican poorwill was by the Swedish naturalist

Carl Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...

in 1758 in the tenth edition of his ''

Systema Naturae ' (originally in Latin written ' with the Orthographic ligature, ligature æ) is one of the major works of the Sweden, Swedish botanist, zoologist and physician Carl Linnaeus (1707–1778) and introduced the Linnaean taxonomy. Although the syste ...

'' under the

binomial name In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, altho ...

''Caprimulgus americanus''. It was at one time considered

conspecific Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organism ...

with the only other living species in its genus, the

least poorwill The least poorwill or least pauraque (''Siphonorhis brewsteri'') is a species of nightjar in the family Caprimulgidae, and the only confirmed extant species of its genus. It is endemic to the island of Hispaniola, which is shared by the Domin ...

(''Siphonorhis brewsteri''). It is

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

Description

The Jamaican poorwill is known only from a very few specimens, the most recent of which was collected in the mid 1800s. It is long. The male's upperparts are rufous brown with blackish streaks. It has a faint rufous buff collar on the hindneck. The chin and upper throat are rufous, the lower throat clear white, the breast rufous with faint narrow brown barring, and the belly and flanks buff with brown bars and large whitish spots. The tail is mostly rufous brown with brown flecks and bars; all but the central feathers have white tips. The female is similar to the male, but somewhat less rufous overall; its underparts are more heavily spotted and the tips of the tail feathers are buffy. It possessed distinct 2 mm long tubular nostrils that differentiated it from its relatives on the mainland.

Distribution and habitat

The few specimens of Jamaican poorwill from known localities were collected on the south side of the island. It was described as rare to locally uncommon during the first half of the 19th century. The habitats in Jamaica's south side included low elevation dry limestone forest, semi-open woodland, and open country.

Behaviour

Feeding

The Jamaican poorwill is assumed to have been a nocturnal aerial insectivore like the least poorwill.

Breeding

The Jamaican poorwill is assumed to have laid its eggs on the ground without a nest like the least poorwill.

Vocalization

The Jamaican poorwill's vocalizations were not described by the collectors.

Status

The

IUCN The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status ...

has assessed the Jamaican poorwill as Critically Endangered (Possibly Extinct). The

International Ornithological Committee The International Ornithologists' Union (IOU) is an international organization for the promotion of ornithology. It links basic and applied research and nurtures education and outreach activities. Specifically, the IOU organizes and funds global co ...

(IOC) and

Clements taxonomy ''The Clements Checklist of Birds of the World'' is a book by Jim Clements which presents a list of the bird species of the world. The most recent printed version is the sixth edition (2007), but has been updated yearly, the last version in 202 ...

consider it definitely extinct.Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 25, 2021

References

External links

BirdLife Species Factsheet.
{{Taxonbar, from=Q1092088 Jamaican poorwill Endemic birds of Jamaica Birds of Jamaica Critically endangered fauna of North America Jamaican poorwil Jamaican poorwil Taxonomy articles created by Polbot