Field Marks. A general color of olive green; a conspicuous white 
color over the eye; iris ruby-red; a well defined slaty-gray cap, bordered 
by narrow black lines. 
Song. "You see it— you know it-do you hear me— do you believe 
it?" AU these strains are delivered with a rising inflection at the close, 
and with a pause as if waiting for an answer."— Flagg. 
The red-eyed vireo is the most abundant of our vireos and, in fact, 
one of our most common birds. Although the bird is usually shy, it has 
been known to become so tame that it would take food from a person's 
hand when upon its nest. This vireo is called the Preacher. It is also 
a faithful and industrious worker, searching every nook and cranny in 
the trees for weevils, beetles and caterpillars. The bird has the habit 
of looking for food upon the under side of leaves. When in this position 
the gray crown and the white line over the eye may be easily seen. The 
red-eyed likes to sing so well that he sings during the middle of hot 
summer days when most other birds are quiet. 
WARBLING VIREO— (FiV^o gilvus.) 
Upper parts ashy olive green; no wing bars; under parts slightly 
,vashed with yellowish. 
Length about five and three-fourths inches. 
Arrival. May 2 to i3- 
Favorite Haunts. Tops of shade trees, particularly maples and elms. 
Field Marks. General color of olive green; head without gray cap. 
Song. A smoothly flowing warble. Mr. Flagg hears the bird say: 
"Brig-a-dier— Brig-a-dier— Brigate!" 
The warbling vireo is smaller than the red-eyed. Its crown is not 
so distinctly gray and it has not the dark line on the sides of the head. 
Mr Chapman says: "Although resembling the red-eyed in general ap- 
pearance its song is so different that the singing birds may never be 
mistaken for that species. Instead of the red-eye's broken, rambling re- 
citative, the song of the warbling vireo is a firm, rich, continuous warble 
with a singular alto undertone." 
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