The Southwest Region managed by the US Fish and Wildlife Service encompasses the states of Arizona, New Mexico, Oklahoma, and Texas. This region is home to a great diversity of ecosystems and wildlife, including three of the top five US states for wildlife species diversity (in order: #2 Texas, #3 Arizona, and #4 New Mexico). This is due in part to the incredible variety of habitats spanning the region, ranging from alpine forests to lowland deserts, with grasslands, riparian (riverside) fores...