Guide to North American Birds

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Adult. Photo: Daniel Arndt/Flickr Creative Commons

Boreal Chickadee

Poecile hudsonicus

This dusty-looking chickadee lives in spruce forest of the North, mostly north of the Canadian border. A hardy permanent resident, it survives the winter even as far north as the Arctic Circle. Like other chickadees, this species becomes much more quiet and inconspicuous during the nesting season. Because that is the time of year when birders most often search for it, the Boreal Chickadee has gained a reputation as an excessively elusive bird.

Conservation status	Wide range in remote forests of far north probably helps give species a secure future.
Family	Chickadees and Titmice
Habitat	Conifer forests. Mainly in forests of conifers, especially spruces, but also in some mixed forest. Occurs in low stunted spruces as far north as treeline. At southern edge of range, found in spruce bogs in east, high mountain forest in west, barely south of Canadian border in either region.

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Feeding Behavior

Forages mostly by moving about in dense conifers, gleaning insects from surface of twigs, needles, or trunk. May probe in bark crevices, and may take food while hovering briefly. Also will extract seeds from cones, and will take seeds from deciduous trees such as birches. May store food and retrieve it later.

Eggs

5-8, sometimes 4-9. White, with fine reddish brown dots often concentrated at larger end. Incubation is by female, 11-16 days. Male feeds female during incubation. Young: Female stays with young and broods them much of time at first, while male brings food. Later, both feed nestlings. Young leave nest at about 18 days. 1 brood per year.

Young

Female stays with young and broods them much of time at first, while male brings food. Later, both feed nestlings. Young leave nest at about 18 days. 1 brood per year.

Diet

Mostly insects and seeds. Feeds on a variety of insects, including many caterpillars in summer, plus moths, beetles, and others, also spiders. Eats many insect eggs and pupae, especially in winter. Also eats seeds of various trees.

Nesting

May mate for life, the birds remaining together all year. Nest site is in hole in tree, either natural cavity or old woodpecker hole; chickadees may also excavate their own site or enlarge an existing hole. Site is usually low, 1-12' above the ground. Both sexes help with excavation, but only female builds nest inside. Nest has foundation of moss, bark strips, lichens, feathers, lining of animal hair and plant down.

Illustration © David Allen Sibley.
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Text © Kenn Kaufman, adapted from
Lives of North American Birds

Migration

Generally a permanent resident. Occasional small southward invasions in fall, with a few appearing south of breeding range; may occur in same seasons when Black-capped Chickadees stage similar invasions.

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Migration

All Seasons - Common
All Seasons - Uncommon
Breeding - Common
Breeding - Uncommon
Winter - Common
Winter - Uncommon
Migration - Common
Migration - Uncommon

Songs and Calls

A husky chick-a-dee-dee, lazier and more nasal than call of Black-capped.

Audio © Lang Elliott, Bob McGuire, Kevin Colver, Martyn Stewart and others.
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How Climate Change Will Reshape the Range of the Boreal Chickadee

Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect this bird’s range in the future.

Zoom in to see how this species’s current range will shift, expand, and contract under increased global temperatures.

Climate Threats Near You

Climate threats facing the Boreal Chickadee

Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too.