Tumbes Swallow (Tachycineta stolzmanni) [XC264784]
by id from Piura: N of Sullana, Peru (call, calls)
Tumbes Swallow (Tachycineta stolzmanni) [XC276531]
by Fernando Angulo from Lambayeque: Bosque Pomac, Batan Grande, 33 km NNE Chiclayo, Peru (flight call)
Subspecies
No subspecies.
Forms a superspecies with Mangrove Swallow (Tachycineta albilinea) and White-winged Swallow (Tachycineta albiventer). Was for many years considered conspecific with Mangrove Swallow (Tachycineta albilinea), but differs in nest structure, flight call and morphology, and recent cytochrome b data also support treatment as separate species.