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Western Black-headed Snake vs. Ground Snake

Their records touch at the edge of the Mojave Desert; plain brown Ground Snakes sometimes have a dark head. A: A flat black cap with a sharp back edge in the Western Black-headed Snake; plain or with a smudged dark patch, never a crisp cap in the Ground Snake. B: Plain tan or brown in the Western Black-headed Snake; plain, banded or striped, often orange in the Ground Snake.

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Western Black-headed Snake

Tantilla planiceps

Ground Snake

Sonora semiannulata
Western Black-headed Snake vs. Ground Snake: comparison sheet with the differences marked

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

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