Western Diamond-backed Rattlesnake vs. Red Diamond Rattlesnake

Their records meet in eastern San Diego and Imperial counties. Both have diamonds and black and white tail rings. A: Grey or brown, the diamonds dusty and speckled in the Western Diamond-backed Rattlesnake; tan, pink or brick-red, the diamonds plain and pale-edged in the Red Diamond Rattlesnake. Colour is the field mark; the Red Diamond lives on rocky slopes and in chaparral to the west.

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

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