Chestnut-backed Chickadee

The Chestnut-backed Chickadee is a small, charismatic songbird native to the wet coniferous forests along the Pacific Coast of North America. Renowned for its exceptionally acrobatic foraging style, this chickadee is easily distinguished from its relatives by its richly colored, reddish-brown upperparts and flanks. It is a bold, inquisitive visitor to suburban gardens and backyard bird feeders.

To identify the Chestnut-backed Chickadee, look for the following key field marks:

• Back & Sides: A warm, dark chestnut-brown back and rump. In northern populations (Alaska to coastal Oregon), the flanks are also bright chestnut, while southern California populations (Poecile rufescens barlowi) show contrasting grey flanks with only a faint hint of chestnut.
• Cap and Bib: Features a dark soot-brown cap (unlike the pure black cap of its relatives) and a dark black throat bib.
• Face: Broad, clean white cheek patches that contrast sharply with the dark cap and bib.

Similar Species

• Black-capped Chickadee: Lacks any chestnut color, showing a bright grey back and buff-colored sides, along with a jet-black cap.
• Mountain Chickadee: Features a grey back and possesses a distinct white eyebrow stripe (supercilium) cutting through its black cap.

This chickadee is strongly associated with damp, heavy coniferous forests. It is especially common in stands of Douglas-fir, western hemlock, Sitka spruce, and coastal redwood. Its range extends along a narrow coastal strip of the Pacific Northwest, spanning from southern Alaska down through British Columbia, Washington, and Oregon, to central California. Eastern populations also occur inland in the damp montane forests of northern Idaho, western Montana, and southeastern British Columbia. They are non-migratory, remaining in their breeding territories year-round.

Feeding Habits

Chestnut-backed Chickadees are highly active, acrobatic foragers. They routinely hang upside down from the outer tips of pine and fir branches to glean small insects, spiders, scale insects, and conifer seeds. They are frequent visitors to bird feeders for sunflower seeds, peanuts, and suet, and are known to cache extra food items in bark crevices for later consumption.

Social Structure

Outside of the nesting season, they form the core of mixed-species winter foraging flocks, moving rapidly through the canopy alongside kinglets, nuthatches, creepers, and warblers.

Vocalization

Their voice is higher-pitched and more raspy than that of the Black-capped Chickadee. Their most common call is a scratchy, buzz-like tsik-a-dee-dee or a high, thin, lisping zee-zee-zee. They lack the clear, whistled two-note song characteristic of several other chickadee species.

Nesting

They are cavity nesters, using abandoned woodpecker holes, natural tree hollows, or artificial nest boxes. Both sexes help excavate, lining the base with moss and a uniquely thick, insulating layer of mammalian fur (such as rabbit, deer, or coyote hair).