So partial are these birds to the giant cactus that their range is coincident. Owls, Flycatchers, Wrens, mice and lizards utilize excavations made by these carpenters. Their energy finds an outlet in chiseling many more "homes" than they can use. The work messes them up and sometimes they are so smeared by sap that flying is difficult. The sap soon hardens around the orifice and in the tunnel, leaving a comfortable den for alien birds and small mammals who are not slow to take over the free apartments.
From southeastern California and Nevada, east thru southern Arizona and southwestern New Mexico.