Chestnut-backed Chickadee

When do Chestnut-backed Chickadees nest and feed only in the lower half of trees?

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They do this to minimize competition when part of their range overlaps with that of the Black- capped Chickadee. This bird is a cavity nester. One blanket of fur lines the nest, another is made to cover the eggs when parents leave the nest. Chestnut-backed Chickadees cache food in the fall to consume in winter.

Groups of chickadees are collectively known as a “banditry” or “dissimulation.”