Boreal Chickadee
Poecile hudsonicus

f4.5 @ 1/800s, ISO:800, Nikon D3S w 500mm

"Boreal Chickadee," Wikipedia, the free encyclopedia. These birds forage on conifer branches or probe into the bark, eating mainly insects and seeds, which may be stored for later use. They often forage in small flocks including other small birds, especially in winter.
Anchor Point, Alaska