Boreal Chickadee Poecile hudsonicus

Restricted to coniferous forests in the far northern U.S. and Canada. Similar in size and shape to other chickadees, but with unique color pattern: brown cap, black throat, and rich orange-buff flanks. Typically fairly shy; can be difficult to get a good view as it sneaks through the dense spruces. Voice sounds like a wheezy Black-capped Chickadee; slower with more slurred notes.