| Mexican whip-poor-will | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Caprimulgiformes |
| Family: | Caprimulgidae |
| Genus: | Antrostomus |
| Species: | A. arizonae |
| Binomial name | |
| Antrostomus arizonae Brewster, 1881 | |
 | |
| Synonyms | |
Caprimulgus arizonae | |
The Mexican whip-poor-will, (Antrostomus arizonae), is a medium-sized nightjar of the southwestern United States, Mexico, and northern Central America. [2]
Until 2010 the Mexican whip-poor-will and what is now the eastern whip-poor-will (Antrostomus vociferus) were considered conspecific under the name whip-poor-will. They were separated based on differences in their genetics, morphology, and vocalizations. [3] The two remain sister species and with the Puerto Rican nightjar (A. noctitherus) form a superspecies. [4] The Mexican whip-poor-will has these five subspecies: [2]
The Mexican whip-poor-will is 23 to 24 cm (9.1 to 9.4 in) long and weighs 45 to 50 g (1.6 to 1.8 oz). In general its upperparts are grayish brown with blackish brown streaks; the crown has wide blackish brown stripes. The throat and breast are blackish with a thin white band on the lower throat between them. The belly is buff with brown bars. The male's outermost three pairs of tail feathers have broad white tips; the female's are narrower and buffy. The wings are brown with tawny and buff spots and speckles. The subspecies differ somewhat. They are lighter in the north and darker in the south and there are variations in the tone of the body color (some are redder) and the size and shape of the spots and speckles. [4]
The subspecies of the Mexican whip-poor-will are distributed thus: [2] [4]
A. a. arizonae inhabits several similar mid- to mid-upper elevation, semi-arid to moist, landscapes with the common features being oaks and pines. The habitat of the more southerly resident subspecies is poorly known but there too they are birds of forest and woodland. [4]
The behavior of the Mexican whip-poor-will has not been extensively studied but is assumed to be essentially the same as that of eastern whip-poor-will. That species is crepuscular and nocturnal, and roosts motionless during the day. [4]
Mexican whip-poor-wills are assumed to forage like eastern whip-poor-wills by sallying from a tree perch and less frequently from the ground. The latter's prey is insects, with moths and beetles being the dominant types. [4]
The Mexican whip-poor-will lays its clutch of two eggs directly on leaf litter with no conventional nest. In Arizona they are laid in May and early June; laying dates are not known elsewhere. Both male and female have a brood patch, which probably means that both sexes tend the eggs as do eastern whip-poor-wills. [4]
The Mexican whip-poor-will is more often heard than seen. Its song is an onomatopoeic whip-poor-will like that of its eastern congener, but lower in pitch and "less 'snappy' and slightly 'lazier'". It also makes a variety of other sounds including "a single, low, mellow quirt or queerp note", a growl, and a "growl-chuck". [4]
The IUCN has assessed the Mexican whip-poor-will as being of Least Concern. It has a very large range and an estimated population of 320,000 mature individuals, though the latter is believed to be decreasing. No immediate threats have been identified. [1]
The eastern whip-poor-will is a medium-sized (22–27 cm) nightjar from North America. The whip-poor-will is commonly heard within its range, but less often seen because of its camouflage. It is named onomatopoeically after its song.
The warbling vireo is a small North American songbird.
The Puerto Rican nightjar or Puerto Rican Whip-poor-will is a bird in the nightjar family found in the coastal dry scrub forests in localized areas of southwestern Puerto Rico. It was described in 1916 from bones found in a cave in north central Puerto Rico and a single skin specimen from 1888, and was considered extinct until observed in the wild in 1961. The current population is estimated as 1,400-2,000 mature birds. The species is currently classified as Endangered due to pressures from habitat loss.
The chuck-will's-widow is a nocturnal bird of the nightjar family Caprimulgidae. It is found in the southeastern United States near swamps, rocky uplands, and pine woods. It migrates to the West Indies, Central America, and northwestern South America.
The common poorwill is a nocturnal bird of the family Caprimulgidae, the nightjars. It is found from British Columbia and southeastern Alberta, through the western United States to northern Mexico. The bird's habitat is dry, open areas with grasses or shrubs, and even stony desert slopes with very little vegetation.
The common bush tanager, also referred to as common chlorospingus, is a small passerine bird. It is a resident breeder in the highlands from central Mexico south to Bolivia and northwest Argentina. C. flavopectus in the loose sense is a notorious cryptic species complex, and several of the up to 25 subspecies recognized in recent times are likely to be distinct species. Some populations in fact appear to be more distinct than several other members of Chlorospingus.
The buff-collared nightjar or Ridgway's whip-poor-will is a species of nightjar in the family Caprimulgidae. It is found in Guatemala, Honduras, Mexico, Nicaragua, and the U.S. states of Arizona and New Mexico.
Anthony's nightjar, also known as the scrub nightjar, is a species of nightjar in the family Caprimulgidae. It is found in Ecuador and Peru.
The Yucatan nightjar is a species of nightjar in the family Caprimulgidae. It is found in Belize, Guatemala, Mexico, and Honduras.
The white-tailed nightjar is a species of nightjar in the family Caprimulgidae. It is found in the "ABC Islands", Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Martinique, Panama, Suriname, Trinidad and Tobago and Venezuela.
The Cuban nightjar, is a species of nightjar in the family Caprimulgidae. It is endemic to Cuba.
The Hispaniolan nightjar is a nightjar species endemic to the Caribbean island of Hispaniola, which is shared by the Dominican Republic and Haiti.
The rufous nightjar is a species of nightjar in the family Caprimulgidae. It is found in Argentina, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Guyana, Panama, Paraguay, Peru, Saint Lucia, Suriname, Trinidad and Tobago, and Venezuela.
The tawny-collared nightjar is a species of nightjar in the family Caprimulgidae. It is endemic to Mexico.
The dusky nightjar or dusky whip-poor-will is a species of nightjar in the family Caprimulgidae. It is found in Costa Rica and Panama.
The silky-tailed nightjar is a species of nightjar in the family Caprimulgidae. It is found in Argentina, Bolivia, Brazil, Paraguay, and Peru. Its natural habitat is subtropical or tropical moist lowland forests.
The rufous-bellied nighthawk is a species of nightjar in the family Caprimulgidae. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela.
The short-tailed nighthawk is a species of nightjar in the family Caprimulgidae. It is found in Mexico, in every Central American country except El Salvador, in Trinidad and Tobago, and in every mainland South American country except Chile and Uruguay.
Ergaticus was a genus of New World warblers — small passerine birds found only in the Americas. It was subsumed into Cardellina in 2011. The name is the Latinized version of the Ancient Greek ergatikos, meaning "willing or able to work". The genus contains two sister species: the red warbler, which is endemic to the Mexican highlands north of the Isthmus of Tehuantepec, and the pink-headed warbler, which is found south of the Isthmus, from the highlands of Chiapas, Mexico down into Guatemala. Though they are separated by geography and differ considerably in plumage, the two have sometimes been considered to be conspecific.
Antrostomus is a genus of nightjars formerly included in the genus Caprimulgus. They are medium-sized nocturnal birds with long pointed wings, short legs and short bills.
