Figure 1. Figure 1. Large, "eye-lined" species. All four species are fairly similar in overall coloration, size, and shape. From top to bottom: Yellow-green Vireo, Yucatan Vireo, Black-whiskered Vireo, and Red-eyed Vireo. Compare face pattern and relative bill shape and size. South American Red-eyed (chivi) group similar to Red-eyed, but with shorter primary extension and more yellow flanks and undertail coverts.

Donna L. Dittmann

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