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Southern Rough-winged Swallow
13.5 cm. Brown above, black wings and tail and a pale grey rump. Rufous or cinnamon throat and upper breast, yellow white lower underparts. The tail is slightly forked.
Rough-winged refers to the serrated edge of the outer primary feathers on the wing of this bird.
The birds in Central America often give an impression of a rump of pale cinnamon color rather than the gray seen further south.
 Similar species
It is similar in appearance to its northern counterpart, the Northern Rough-winged Swallow which is more uniform in colour, particularly on the rump but also throat.
Four subspecies are recognized: ruficollis, aequalis, decolor, and uropygialis.
Open areas and forest clearings.
It nests in cavities such as holes in banks or walls, or disused kingfisher and jacamar nests. These cavities are lined with grass, 3-6 white eggs are laid, and incubated by the female for 16-18 days and with another 13 days to fledging.
The diet includes insects which are taken in flight.
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