a brown-headed chickadee, Parus hudsonicus, common in northern Canada.
- 1908  [List] Hudsonian chickadee.
- 1939  The Hudsonian chickadees and Canada jays would come near, making life a bit more cheerful.
- 1956  Chicadees are never far from our yard, both the brown-headed Hudsonian and the more numerous Blackcaps.