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 previously was lumped with the Eastern Whip-poor-will, however with both types having different ranges and vocalizatons, the eggs having different coloration, and DNA sequencing showing enough differentation, it was determined enough evidence was available to separate the 2 types into different species.
Adults have mottled plumage: the upperparts are grey, black and brown; the lower parts are grey and black. They have a very short bill and a black throat. Males have a white patch below the throat and white tips on the outer tail feathers; in the female, these parts are light brown.
Read more about Mexican Whip-poor-will: Ecology, External Links
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