Violet-green Swallow
(
Tachycineta thalassina
)
Photographed in California, by Jim Rosso
The bird on the left is approaching its nest cavity. You can see the white rump that helps distinguish it from a
Tree Swallow
. The bird on the right is a female Violet-green Swallow.
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Other members of the genus Tachycineta:
Tree Swallow