The blue-tailed emerald is a hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in tropical and subtropical South America east of the Andes from Colombia east to the Guianas and Trinidad, and south to northern Bolivia and central Brazil.
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Low-Light Telephoto Systems
Identifying specific features of the Blue-tailed Emerald requires high-contrast magnification. Check out the top-rated 8x42 optics.