Range
Black-capped Chickadee is resident from western and central Alaska, southern Yukon, and southern Mackenzie across forested regions of the continent to Newfoundland, south to northwestern California, northeastern Nevada, central Utah, northern New Mexico, northern Kansas, and central Ohio; and south through the Appalachian Mountains to North Carolina and Tennessee.

Status in British Columbia
On the coast, a common resident in the Fraser Lowland of the Georgia Depression; very rare on the Sunshine Coast. Fairly common in the southern Coast and Mountains Ecoprovince, becoming rare on the central and northern mainland of that ecoprovince. Absent from Vancouver Island, the Queen Charlotte Islands, and the Gulf Islands.
In the interior, a common resident in the southern half of the province, including the Southern Interior, Southern Interior Mountains, and Central Interior ecoprovinces; fairly common in the Sub-Boreal Interior, Northern Boreal Mountains, and Boreal Plains ecoprovinces; uncommon in the Taiga Plains Ecoprovince.

Breeding
The Black-capped Chickadee has a widespread breeding distribution in interior British Columbia. It breeds commonly in the Thompson, Okanagan, and Similkameen river valleys, in the western Columbia River valley north to Revelstoke, in the Rocky Mountain Trench and adjacent valleys north to Brisco and Mount Robson, and into the Central Interior. Breeding populations are less frequently encountered further north.The Black-capped Chickadee is a primary cavity excavator, but will occasionally use old woodpecker or sapsucker cavities for nesting. Nest cavities were most frequently excavated in dead tree trunks, dead or diseased branches, and rotten stumps. Deciduous trees were used 8 times as often as conifers, and dead trees were preferred over living trees. The most frequently used tree species were birches in the interior and red alder on the coast. The Black-capped Chickadee readily used nest boxes placed on trees, poles, fence posts, and buildings. Nests are cups composed mainly of mosses, animal hair, grasses, feathers, bark strips, and human-made materials. Sizes of 105 clutches ranged from 1 to 9 eggs, with a majority having 5 to 7 eggs.

Remarks
Many people are amazed at how the tiny chickadees can survive the severe winters of interior regions. The Blackcapped Chickadee adjusts to colder temperatures by roosting in cavities and by dropping its nighttime temperature as much as 10° to 12°C below its daytime temperature in a regulated hypothermia, thus conserving energy


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