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Buff-collared Nightjar Antrostomus ridgwayi

  • Order: Caprimulgiformes
  • Family: Caprimulgidae
  • Polytypic: 2 subspecies
  • Authors: Marîa del Coro Arizmendi, Claudia I. Rodríguez-Flores, Carlos A. Soberanes-González, Tom Johnson, and Thomas S. Schulenberg


  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Buff-collared Nightjar
eBird range map for Buff-collared Nightjar

Generated from eBird observations (Year-Round, 1900-present)

Distribution in the Americas

Buff-collared Nightjar occurs from the southwestern United States south to Honduras and Nicaragua. In the United States the distribution is confined to southeastern Arizona and extreme southwestern New Mexico (Bowers and Dunning 1997). In Mexico is occurs south, primarily along the Pacific slope but also in the Balsas drainage, from Sonora and western Chihuahua to Chiapas (Friedmann et al. 1950, Binford 1989, Howell and Webb 1995). There also is an isolated population in central Veracruz (Howell and Webb 1990). The distribution continues south through central Guatemala and Honduras to south central Nicaragua (Monroe 1968, Land 1970, Martínez-Sánchez and Will 2010).

Buff-collared Nightjar is resident north to southern Sonora, Mexico. Populations in the United States and in northern and central Sonora are migratory. They probably are present in this region only from May through August (Howell and Webb 1995), although at one site in south central Sonora Buff-collared Nightjar is reported from 8 March-15 October (Russell and Monson 1998).

The elevational range of Buff-collared Nightjar is from the lowlands up to 1800 m (Howell and Webb 1995) or to 2000 m (Parker et al. 1996).

Distribution outside the Americas

Endemic to the Americas.


Buff-collared Nightjar occurs in tropical deciduous forests, arid to semiarid brushy woodlands, scrub, and forest edge, and locally in pine-oak forests (Schaldach 1963, Binford 1989, Howell and Webb 1995)

Historical changes

Buff-collared Nightjar was not reported in the United States until it was encountered in New Mexico in 1958 (Johnston and Hardy 1959), and in Arizona in 1960 (Levy 1962). Although many of sites where Buff-collared Nightjar occurs in the United States are remote and difficult to access, the absence of earlier records of this species from the region suggest that its range recently has expanded to the north (Bowers and Dunning 1997).

Fossil history

None reported.

Recommended Citation

Arizmendi, M. d. C., C. I. Rodríguez-Flores, C. A. Soberanes-González, T. Johnson, and T. S. Schulenberg (2013). Buff-collared Nightjar (Antrostomus ridgwayi), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.