39% of aridland birds are species of conservation concern, including 10 federally listed as endangered or threatened. These species are especially vulnerable because of their small ranges or restricted habitat requirements, or both.
60% of all aridland species and 76% of aridland obligate species have declined.
More than 50% of aridland birds are permanent residents of the U.S. borderlands.
174 condors are flying free, and the number is expected to grow each year.