Mountain Chickadee or Chestnut-Backed Chickadee?

General appearance

The mountain chickadee is approximately 5-5 3/4 inches (13-15 cm) long, roughly the size of a sparrow. Its characteristic features include a black cap and bib. A distinctive white eyebrow, which may be broad or narrow, breaks the black cap. Their wings are rounded while the tail shape varies from notched to rounded or square-tipped. They sport the colors of nature: black, gray, and white.

Male vs female

Males and females of the mountain chickadee species are identical in their physical appearance and there are no significant size or color variations between the two. They both sport the same black cap, whites eyebrow, and gray body coloration.

Juvenile

Young mountain chickadees resemble adults, but their plumages may be less vibrant and the distinct white eyebrow may be difficult to make out. Depending on the season, the plumage of all mountain chickadees, including juveniles, may be in worn condition, making the white eyebrow particularly difficult to see.

Primary habitat

Mountain chickadees prefer high-altitude coniferous forests, especially of pine, spruce, fir, or Douglas-fir. They are also found in aspen groves within these zones, and lower habitats such as pine-oak and pinyon-juniper.

Additional range

While their primary range is in mountain forests, they may wander to lowlands in winter. Here they inhabit planted conifers if available, and occasionally breed in cottonwood groves.

Natural diet

The mountain chickadee primarily consumes a variety of insects, seeds, and berries. It feeds on many types of insects, including caterpillars, beetles, and other varieties. The bird also targets insect eggs and pupae, along with spiders and their eggs. In addition to these protein sources, the mountain chickadee enjoys seeds, berries, and small fruits as part of its diet.

Bird feeders

At bird feeders, mountain chickadees are known to consume sunflower seeds and suet. They may also eat nuts and peanuts, along with any other small seeds provided. These birds are frequent and adaptable visitors to backyard feeders, enjoying a wide variety of offerings that mimic parts of their natural diet.