Polioptilidae
- Tawny-faced Gnatwren Microbates cinereiventris
- Long-billed Gnatwren Ramphocaenus melanurus
- White-lored Gnatcatcher Polioptila albiloris
- Tropical Gnatcatcher Polioptila plumbea
Read more about this topic: List Of Birds Of Costa Rica
Polioptilidae
Read more about this topic: List Of Birds Of Costa Rica