THE RED-EYED AND THE WHITE-EYED VIREOS 287 
THE VIREO FAMILY 
Vireonidae 
It is quite difficult to point out peculiarities by which the 
vireos can be distinguished from the warblers. They are 
placed next to the shrikes because of a supposed resemblance 
RED-EYED VIREO. 
to those birds in the shape of the upper mandible—hooked 
and notched. The vireos look so much like warblers that 
only an expert can distinguish them. 
Tue Repv-Eyep Vireo! is distinguishable at close range 
by its red eye with a white line over it, and the WuiTEe-EyEp 
Vireo’ also is marked by the white color of its eyes. Both 
are fairly good songsters, and the former is about as “‘do- 
1 Vir'e-o ol-i-va'ce-us. Length, 6 inches. 
2V. no've-bo'ra-cen’sis. Length, 5 inches. 
