- The Whiskered Screech-owl (Megascops Trichopsis) is a highly sought-after specialty bird in the United States, found exclusively in the "Sky Islands" mountain ranges of southeastern Arizona and a tiny sliver of southwestern New Mexico - Unlike the closely related Western Screech-owl, which nests lower down in Sonoran desert saguaros, the Whiskered Screech-owl is a year-round resident of higher-elevation mountain woodlands