It is similar to the White-rumped Swallow but lacks the white forehead (not always reliable) of that species and has bluer upperparts and grey underwing-coverts.
Chilean Navy | 1973 Chilean coup d'état | Chilean | Steve Swallow | Chilean War of Independence | Red-rumped Swallow | Chilean people | Swallow the Sun | Swallow | James Swallow | Chilean rose tarantula | Swallow Tanager | Northern Rough-winged Swallow | Chilean Spanish | Chilean presidential election, 2009–2010 | Chilean escudo | White-rumped Swallow | The four greats of Chilean poetry | Swallow TP | Swallow This Live | Swallow-tailed Kite | Swallow Sidecar Company | Swallow New Swallow | Ian Swallow | Chilean presidential election, 2005–2006 | Chilean peso | Chilean ironclad Blanco Encalada | Víctor Morales (Chilean footballer) | The Big Swallow | Tell Me What Rockers to Swallow |