Polioptilidae

The Polioptilidae family, commonly known as gnatcatchers, comprises about 15 species of small, insect-eating birds native to the New World. These birds belong to the order Passeriformes. While some authorities classify them as a subfamily within the Old World warbler family Sylviidae, they are often recognized as their own family.1

A well-known example is the blue-gray gnatcatcher, which resembles a tiny mockingbird and catches insects in flight or by gleaning them from branches. The black-tailed gnatcatcher is known for its year-round pairing and vocalizations that mimic other birds. The California gnatcatcher, recognized as a distinct and endangered species, faces habitat loss due to coastal development.1