Brown Anole Fight

There were two large male Brown Anoles in our backyard the other day.

Here is one displaying his throat patch.

Notice he has ridges on his back and more of a spotted pattern on his sides.  The big males sometimes get this way. 

Here are both of them together.  They mostly stared at each other and bobbed their heads up and down.  Eventually one bit the other on the head then they both ran away.