Mark shares that this is his first time encountering an elf owl and explains how these tiny, docile birds lead secluded lives, often nesting in saguaro cactus cavities made by woodpeckers.

TUCSON, Ariz.— Following multiple petitions and lawsuits, the U.S. Fish and Wildlife Service today again protected the cactus ferruginous pygmy owl as threatened under the Endangered Species Act after ...