The Black-capped Chickadee (Poecile atricapillus) is native to North America. It is primarily found in the northern United States and throughout Canada. Its range extends from Alaska and Canada down through the northern two-thirds of the United States to as far south as New Mexico and Georgia in the east.

The Black-capped Chickadee inhabits deciduous and mixed forests, woodlands, and groves. It is commonly found in areas with dense shrubbery, undergrowth, or mixed tree cover, and is adaptable to suburban and urban environments where trees are present. The species thrives in regions with cold winter climates, often inhabiting areas with snow cover. It prefers environments with abundant tree cavities for nesting.

Poecile atricapillus plays an important role in its ecosystem as both a seed and insect eater. It helps in seed dispersal and pest control, feeding on insects and their larvae, spiders, seeds, and berries. This adaptability in diet allows the Black-capped Chickadee to thrive across a wide range of habitats, and its small size and agility make it well-suited to foraging in dense foliage and bark crevices. During winter, the chickadee is known to cache food to survive the cold months, demonstrating significant adaptability in its foraging behavior.