| Common Name: | Vireo, Warbling | | Scientific Name: | Vireo gilvus | | Family: | Vireonidae | | Area: | Collier Memorial State Park, Oregon | | Date: | June 23, 2013 | 
Warbling Vireos are common summer migrants to the US from the tropics, but hard to spot hidden among the leaves of cottonwoods and aspens. | | Reference: | The Sibley Field Guide to Birds of Western North America by Sibley |
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