Birding Darien, Panama - 3-8 Jan18 - Muffalo's Lair
6168.southern rough-winged swallow (Stelgidopteryx ruficollis)

6168.southern rough-winged swallow (Stelgidopteryx ruficollis)

https://neotropical.birds.cornell.edu/Species-Account/nb/species/srwswa1/overview