Rusty-rumped Whiptail vs. Common Spotted Whiptail

They meet at the eastern edge of the Big Bend region and hybridise; both are spotted whiptails with rusty-red tails when young. A: Rusty orange, the orange running forward into the back pattern in the Rusty-rumped Whiptail; brown to olive; the stripes stay clean to the hind legs in the Common Spotted Whiptail. B: Six or seven stripes in the Rusty-rumped Whiptail; seven or eight stripes in the Common Spotted Whiptail. Common Spotted males have a pink to orange throat and a blue-black chest. Hybrids between the two are known (Forstner et al.).

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