C.A.Villalba:
Golondrina de Río, Progne tapera, Brown-Chested Martin
C.A.Villalba:
Golondrina de Río, Progne tapera,Brown-Chested Martin
C.A.Villalba:
Golondrina de Río, Progne tapera,Brown-Chested Martin
C.A.Villalba:
Golondrina de Ala de Sierra, Stelgidopteryx ruficollis, Southern Rough-Winged Swallow
C.A.Villalba:
Golondrina de Ala de Sierra, Stelgidopteryx ruficollis, Southern Rough-Winged Swallow
C.A.Villalba:
Golondrina Urbana,Gray-Breasted Martin, Progne chalybea
C.A.Villalba:
Golondrina Urbana,Gray-Breasted Martin, Progne chalybea
C.A.Villalba:
Tachycineta albiventer. Golondrina de Agua. White-Winged Swallow
C.A.Villalba:
Tachycineta albiventer. Golondrina de Agua. White-Winged Swallow
C.A.Villalba:
Notiochelidon cyanoleuca. Golondrina Azul y Blanco. Blue-And-White Swallow