The black-capped gnatcatcher (Polioptila nigriceps) is a small songbird found in the arid regions of the southwestern United States and northern Mexico. It is a member of the family Polioptilidae, […]
The black-capped gnatcatcher (Polioptila nigriceps) is a small songbird found in the arid regions of the southwestern United States and northern Mexico. It is a member of the family Polioptilidae, […]