They are curious and unafraid of humans, and old-time birders call this classic chickadee trait confiding. Learn all about ...

The chestnut-backed chickadee is curious about humans, and spends the postbreeding and winter seasons foraging noisily in mixed-species flocks. Unlike other parids (except for the mountain ...

The most widespread, numerous, and geographically variable chickadee, this bird brightens winter days at bird feeders and eagerly takes advantage of nest boxes. It is curious, with little or no ...

The Boulder Chickadee Study leverages an extensive network of nest boxes from Boulder up to the Mountain Research Station to examine how cities are changing interactions between these two species from ...