Joshua Tree is a vast area of 794,000 acres including portions of the high Mojave Desert, the low Colorado Desert. Many birds found here show interesting adaptations to the extremes of desert life. C - Common. Species observed frequently in most proper habitat. FC - Fairly Common.
Species occurs in only some of the proper habitat.
U - Uncommon. Species occurs regularly but is observed infrequently even in proper habitat. R - Rare. Species occurs regularly, but in small numbers. Requires careful searching of proper habitat.