Description
Adults are velvet green on their upperparts with white underparts and a forked tail; they have white patches on the side of the rump. The head is usually more coppery or brownish than the back, and the rump is a glossy violet color. In adult males, the white throat area extends behind and above the eyes; adult females are duller. Immature birds are brown on the upperparts.
Read more about this topic: Violet-green Swallow
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