The scaly flasher - a Western fence lizard.

Just like a mythical dragon, the Western fence lizard has scales all over its body.  Sceloporus occidentalis, to give it the posh scientific name, is mainly grey to brown blotches but the males have scattered blue or green scales on their backs and blue bellies. Sometimes they are called blue belly lizards as a result.  The scales are overlapping like the tiles on a house or like the head of an artichoke. They are pointy too.
In the mating season, the males will are flashers. They do push-up movements with their front legs - so that there is a flash of blue belly. This is a warning to other males to keep clear.

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