Swallow spp on the waterways at Tortuguero.
Blue and White Swallows at Monte Verde
Blue and white swallow at Monte Verde - the black undertail coverts are diagnostic
Mangrove swallow at Tortuguero. Note the white line over the eye
Cliff swallow over the waterways at Tortuguero.
Southern-rough winged Swallow in the Arenal volcano area. Note the cinnamon throat which distinguishes it from Northern rough-winged swallow.
Also Barn swallow (in tail moult) at Tortuguero.