There are lots of great ornamental goodies to decorate your Southwest garden.
Check out your local farmer's market, you should find all sorts of interesting things there.
Here are some we thought were really fun!
If you are thinking about putting one of those fake owls in your yard to scare away other birds and such, make sure you get one that moves and makes noise. I put one of the non-moving ones in my garden and the birds actually sat on it's head!