Gilded flicker

The gilded flicker (Colaptes chrysoides) is a large woodpecker (mean length of 29 cm) of the Sonoran, Yuma, and eastern Colorado Desert regions of the southwestern United States and northwestern Mexico, including all of Baja California, except the extreme northwestern region. Yellow underwings distinguish the gilded flicker from the northern flicker found within the same region, which has red underwings.

Taxonomy
Four subspecies are recognized:
 * The Cape gilded flicker (C. c. chrysoides) resides in southern Baja California.
 * The brown gilded flicker (C. c. brunnescens) resides in northern and central Baja California.
 * Mearns' gilded flicker (C. c. mearnsi) resides in extreme southeastern California to Arizona and northwestern Mexico.
 * The Mexican gilded flicker (C. c. tenebrosus) resides in northwestern Mexico from northern Sonora to northern Sinaloa.

Habitat
The gilded flicker most frequently builds its nest hole in a saguaro cactus, excavating a nest hole nearer to the top than to the ground. Less frequently, they will also nest in desert washes with cottonwood or willow. Cavities in saguaros are excavated a year before they are inhabited. The cactus defends itself against water loss into the cavity of the nesting hole by secreting sap that hardens into a waterproof structure that is known as a saguaro boot. Northern flickers, on the other hand, nest in riparian trees and very rarely inhabit saguaros. Gilded flickers occasionally hybridize with northern flickers in the narrow zones where their ranges and habitats overlap.

Diet
The gilded flicker's diet mostly consists of ants, as well as other insects such as beetles or termites. They forage on the ground by picking up insects or using their tongues to probe anthills. They also feed on fruits and berries.