Living in the 'burbs there aren't many native animals that appear in my back yard other than birds and bugs.
The exception is the Western Fence Lizard - Sceloporus occidentalis - which pretty much have the run of the place.
The lizards spend most of their time sunning themselves on walls or fences. However, occasionally they do pushups, which serves as a message to others of their kind, either as territorial challenge or part of a courtship display (I can't tell the difference, but presumably the other lizards can). You can see that behavior in this video:
They reduce the population of unpleasant backyard critters by eating on crickets, spiders, ticks and scorpions. They even reduce the risk of Lyme disease, because the lizards' blood carries a factor that kills the disease-causing bacteria in the gut of ticks that bite them.
I just wish our next door neighbor's cat would stop hunting them, at least on our side of the fence.