RTHA = Red Tailed Hawk. The most common hawk in Arizona and North America. The majestic scream you hear on television when just about any bird of prey is shown (particularly an eagle) is actually the sound of a Red Tailed Hawk.
The Raptor Series is in honor of Liberty Wildlife moving to the neighborhood! They are the largest wildlife rescue organization in Arizona and you will be able to visit their new facility when it opens Summer of 2016. Come on out and see the wildlife! Both on the trails and indoors.