Anthony Vireo
632c. Vireo huttoni obscurus. 4¼ inches.
Like Hutton, but a trifle smaller and darker. Found from British Columbia to southern California, breeding in Oregon (not illustrated).
Least Vireo
633a. Vireo belli pusillus. 4¼ inches.
Much like the last, and found nesting in southern California, Texas and Arizona. Their nest is a neat, compact, cup-shaped structure, made of shreds of vines and fine roots, and lined with fine grass. The four eggs are white, spotted finely with brown about the larger end (.70 ×.80).