Cassin's Vireo (Vireo cassinii)Post Park, ~5 miles south of Marathon.
Blogging from Marathon, TX about birding, butterflies, moths and more. Exploring the gems of Brewster County, Post Park, Big Bend National Park and the surrounding region. Bird watching: Big Bend and beyond!
I love how the light yellow towards the rump and green around the shoulders are brought together in the light blue on the head--it's the color wheel in harmony. Plus, the bird has racing goggles!
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