Violet-green Swallow Valley west of by Jim Bruce |
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Violet-green Swallow Tachycineta thalassina |
Rock Cliffs Park Wasatch County, Utah 30 May 2005 |
by Jack Binch ŠJack Binch |
Violet-green Swallow Tachycineta thalassina |
Dead Horse Point San Juan County, Utah 8 May 2008 |
by Kent Keller ŠKent R. Keller |