Chlorostilbon mellisugus gibsoni
The red-billed emerald (Chlorostilbon gibsoni) is a species of hummingbird in the Trochilidae family. Formerly it was considered as part of the species C. mellisugus, blue-tailed emerald. As considered here, it does not include C. melanorhynchus, (western emerald), of west Colombia and Ecuador, which is sometimes considered conspecific.
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