- These small birds build nests in holes, typically in dead trees or rotten branches. The nest is made of coarse materials such as moss and is lined with soft material like fur.
- The Black-capped Chickadee hides seeds and other food items for later recovery during colder weather. Each item is placed in a different spot and a bird can remember hiding places a month after caching the food.
- Chickadees live in small groups and establish a dominance hierarchy, or “pecking order.” Each bird is known to the other according to rank which is set by its degree of aggressiveness. Accordingly, all the birds in the flock are subordinate to the most aggressive bird; and the lowest ranking bird is subordinate to all the others.
- When breeding season begins, the tiny brains of chickadees and other songbirds enlarge to enable the birds to create more sounds.