The Bridled Titmouse (Baeolophus wollweberi) is a small passerine bird found in the southwestern United States and Mexico. It is typically about 4.5 inches long and weighs around 0.4 ounces. The Bridled Titmouse is a small bird with a distinctive black and white facial pattern. Its head and upper body are gray-blue, while the wings and tail are a rusty brown. Its crown is black and its forehead is white. Its legs are black and its beak is short and dark.

The Bridled Titmouse is a resident bird, meaning that it does not migrate long distances. It can be found year-round in its breeding range, which includes southern Arizona, New Mexico, and western Texas, as well as parts of Mexico. Its habitat consists of oak and pine woodlands, especially those near water sources.

One of the most distinguishing field marks of the Bridled Titmouse is its distinctive vocalizations. Its calls are described as a series of clear whistles, often given in pairs or triplets. The Bridled Titmouse is also known for its acrobatic feeding behavior, clinging to branches and twigs while searching for insects and seeds.

The Bridled Titmouse is a social bird and is often found in small groups or family units. It nests in tree cavities or bird boxes, and both parents take turns incubating the eggs and feeding the chicks. The species is not considered threatened, although habitat loss and degradation due to human development and land-use changes are potential threats.

In summary, the Bridled Titmouse is a small, non-migratory bird found in southwestern United States and Mexico. It is about 4.5 inches long and weighs around 0.4 ounces, with a distinctive black and white facial pattern. It is a resident bird found year-round in its breeding range, which includes parts of Arizona, New Mexico, Texas, and Mexico. Its habitat consists of oak and pine woodlands near water sources. The Bridled Titmouse is known for its distinctive vocalizations and acrobatic feeding behavior and nests in tree cavities or bird boxes.