The Bell's Vireo is small songbird with drab gray coloring to greenish coloring above and white to yellow coloring below. The Bell's Vireo has one prominent wingbar with a more faint wingbar above it and a faint white eye ring. Juveniles are similar to adults, but whiter below and with more distinct wingbars.

References for Species Profile

• Cornell Lab of Ornithology. 2015. Bell's Vireo. All About Birds. http://www.allaboutbirds.org/guide/bells_vireo/id
• Kus, Barbara, Steven L. Hopp, R. Roy Johnson and Bryan T. Brown. 2010. Bell's Vireo (Vireo bellii), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/035