Black-backed Woodpecker

The Black-backed Woodpecker (Picoides arcticus) is a medium-sized specialist of the northern coniferous forests of North America. Renowned for its highly specific ecological niche, this bird is a pyrophilous species, meaning it is strongly attracted to recently burned forest tracts. There, its charcoal-colored plumage serves as the perfect camouflage against soot-covered tree trunks while it searches for its preferred food. Like its close relative, the American Three-toed Woodpecker, this species possesses only three toes on each foot rather than the typical four found on most woodpeckers.

The most defining feature of this species is its entirely glossed, solid black back, which immediately distinguishes it from almost all other North American woodpeckers.

Key Field Marks:

• Plumage: Solid black upperparts from the crown down to the tail. Underparts are white, with dense black barring along the flanks.
• Head Pattern: A single, thin white line runs below the dark eye, starting from the bill.
• Male vs. Female: Adult males feature a prominent yellow patch on the center of the crown, while females have an entirely black crown.
• Feet: Three toes (two facing forward, one backward) instead of the usual four.

Similar Species:

• American Three-toed Woodpecker (Picoides dorsalis): Very closely related and shares the three-toed morphology and yellow crown on males. However, the American Three-toed has a messy white ladder-back pattern instead of a solid black back.
• Hairy Woodpecker (Dryobates villosus): Has a broad white patch running down the center of its back and possesses four toes.

Geographic Range

Black-backed Woodpeckers are resident across the boreal forests of North America. Their range extends from Alaska, across Canada, to Newfoundland, dipping south into the northernmost parts of New England, the Great Lakes region, the northern Rocky Mountains, the Cascades, and the Sierra Nevada.

Habitat and Fire Alliance

While they can be found in mature, unburned coniferous forests of spruce, fir, and pine, they reach their highest densities in recently burned forest stands (typically 1 to 5 years post-fire). They are also attracted to areas with massive windthrows, flooding, or insect infestations where thousands of dead coniferous trees remain standing. They are non-migratory but will wander long distances to locate fresh burns and insect outbreak zones.

Foraging Behavior

Unlike woodpeckers that drill deep, neat holes, the Black-backed Woodpecker uses its powerful bill to flake away large sheets of bark from dead or dying trees. This reveals the hidden galleries of larval wood-boring beetles.

Vocalizations and Drumming

Its call is a distinctive, sharp, metallic 'kik' or 'pik', higher-pitched and more mechanical than that of the Hairy Woodpecker. Both males and females drum loudly on resonant snags. The drum is unique: long, fast, and slightly accelerating at the start, tapering off at the end, often lasting up to 2 seconds.

Nesting

Pairs excavate a new cavity each year, almost exclusively in dead coniferous trees (snags) or occasionally in living trees with heart rot. Nest excavation takes about 2 to 3 weeks and is performed by both sexes. The nest chamber is unlined except for wood chips, where they lay 3 to 4 white eggs.