Gray Checkered Whiptail vs. Common Checkered Whiptail

Both are all-female checkered whiptails; in Texas they live near each other in Presidio County. A: Grey; the pale stripes broken into bars and spots, the checks small in the Gray Checkered Whiptail; yellowish to tan; bold black squares between the stripes in the Common Checkered Whiptail. Hard to tell apart by sight: PLACE DECIDES. In New Mexico the Gray Checkered lives only around Antelope Pass in the Peloncillo Mountains; the Common Checkered in the east and the Pecos valley.

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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