White-browed Gnatcatcher (Polioptila bilineata) [XC259432]
by Olaf Jahn from Guayas: \, Ecuador (wing or bill snaps)
White-browed Gnatcatcher (Polioptila bilineata) [XC275577]
by Leonardo Ord\u00f3\u00f1ez-Delgado from Esmeraldas: San Miguel, R\u00edo Cayapas, Ecuador (song, song (very fast))
Subspecies
No subspecies.
Not recognised by BirdLife International. Considered by some authors to be a subspecies of Tropical Gnatcatcher (Polioptila plumbea).