Ladder-backed woodpecker

The ladder-backed woodpecker (Dryobates scalaris) is a small North American bird known for its distinctive black and white plumage. Its back and wings feature a barred pattern that resembles the rungs of a ladder, and its rump is speckled with black. The underparts are typically cream-colored, though southern populations may exhibit duskier buff breasts and smaller bills. Adult males are identifiable by a red crown patch, which is absent in adult females.

Range and Habitat

This species is found year-round across a substantial range, extending from the southwestern United States, including areas of southern Nevada and southeastern Colorado, throughout most of Mexico, and locally into Central America as far south as Nicaragua. Ladder-backed woodpeckers prefer dry, brushy areas and thickets, adapting well to arid environments.

Behavior and Diet

As with most woodpeckers, the ladder-backed woodpecker forages by excavating tree trunks with its chisel-like bill, seeking out insects and their larvae. A notable dietary supplement for this species is the fruit produced by cacti. They are cavity nesters, excavating their homes in tree trunks or, in drier regions, within large cacti. The female typically lays between two and seven plain white eggs, which are incubated by both parents, though further details about their nesting period are not widely recorded.

Identification

The ladder-backed woodpecker bears a strong resemblance to Nuttall's woodpecker. Key distinctions include the ladder-backed woodpecker having significantly less black on its head and upper back. Their geographic ranges overlap minimally, primarily in southern California and northern Baja California, where hybridization has been observed.