"This woodpecker's habitat consists of low desert scrub typical of the Sonoran Desert. They build nests in holes made in saguaro cacti or mesquite trees. Cavities excavated by these woodpeckers in saguaro cacti are later used by a variety of other species, including the elf owl. There, they typically lay 3–5 white eggs."
This photo was taken at Gilbert Ponds in AZ.
How they avoid being pricked by a thousand needles is beyond me.