 |
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| boreal chickadee (Poecile hudsonica); Hudsonian chickadee (Parus hudsonicus) | |||
| boreal chickadee (Parus hudsonicus); brown-headed chickadee (Parus hudsonicus); Hudsonian chickadee (Parus hudsonicus); Hudsonian tit (Parus hudsonicus) | |||
|
| |||
| boreal chickadee (Poecile hudsonica); Hudsonian chickadee (Parus hudsonicus) | |||
| boreal chickadee (Parus hudsonicus); brown-headed chickadee (Parus hudsonicus); Hudsonian chickadee (Parus hudsonicus); Hudsonian tit (Parus hudsonicus) | |||