A male Gila woodpecker prepares to leave the nest as his partner brings a spider for their hungry children inside the saguaro. Both parents excavate the nest cavity, the cactus will slowly harden the inside to prevent water loss and it is only then that the woodpeckers can use the cavity as a nest. You can see how much of the surrounding surface of the saguaro has been scraped away as they created their home and now land over and over again.
Boolie 