Are cactus wrens endangered

No, the Arizona cactus wren [Campylorhynchus brunneicapillus] isn't endangered or threatened in its native range. As a songbird, it's protected by the Migratory Bird Treaty. But such protection doesn't mean that its populations are in trouble. Indeed, it's a year round resident of Arizona. Its populations also may be found in the southwestern states of California, Nevada, Texas, and Utah.