The Western Fence Lizard is quite common in the West. They are 5-8 inches long, including the tail. The blue throat and sides of adult males are quite striking. The blue is lacking in females and immatures. Instead, for identification, the backs of the legs show quite a bit of yellow, as in the photo below.
I have just learned (Wikipedia) that there are 3 color morphs of males and 2 color morphs of females, all with different breeding strategies. If I am identifying it correctly, the lizard below is a yellow-throated female.
|Side-blotched Lizard. Torrey Pines Reserve, California. June 21, 2015. Greg Gillson.|
In recent weeks I've also seen Horned Lizard and Alligator Lizards, and perhaps others that were just too quick for me!