Animalia > Chordata > Aves > Caprimulgiformes > Caprimulgidae > Antrostomus > Antrostomus arizonae

Antrostomus arizonae (Whip-poor-will)

Synonyms: Caprimulgus arizonae; Caprimulgus vociferus
Language: French; Spanish

Wikipedia Abstract

The Mexican whip-poor-will, (Antrostomus arizonae), is a medium-sized (22–27 cm) nightjar from the southwestern United States and Mexico. The whip-poor-will is more often heard within its range, but less often seen. It is named onomatopoeically after its song. This bird used to be lumped with the eastern whip-poor-will. Each type has a different range and vocalizaton, the eggs have different coloration, and DNA sequencing shows enough differentiation, so it was determined enough evidence was available to separate the two types into different species.
View Wikipedia Record: Antrostomus arizonae


EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 9.90202
EDGE Score: 2.38895


Adult Weight [1]  53 grams
Birth Weight [2]  5 grams
Female Weight [1]  57 grams
Male Weight [1]  50 grams
Weight Dimorphism [1]  14 %
Diet [3]  Carnivore (Invertebrates)
Diet - Invertibrates [3]  100 %
Forages - Mid-High [3]  50 %
Forages - Understory [3]  20 %
Forages - Ground [3]  20 %
Forages - Water Surface [3]  10 %
Clutch Size [4]  1
Clutches / Year [2]  2
Incubation [2]  19 days
Mating Display [5]  Ground display
Maximum Longevity [2]  15 years
Nocturnal [6]  Yes


Protected Areas

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Biodiversity Hotspots

Name Location Endemic Species Website
Madrean Pine-Oak Woodlands Mexico, United States No
Mesoamerica Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama No

Range Map

External References


Play / PauseVolume
Provided by Birds Of A Feather on Myxer


Attributes / relations provided by
1Cink, C. L. 2002. Whip-poor-will (Caprimulgus vociferus). In The Birds of North America, no. 620 (A. Poole and F. Gill, Eds.). Birds of North America, Philadelphia.
2de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
4Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
5Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
6Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Audio software provided by SoundManager 2
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset accessed via on 2023-06-13; License: CC BY 4.0