ECONOMIC RELATIONS OF OUR BIRDS. 
523 
Ccaterpillars and winged insects (Wilson). Caterpillars and various seeds anc 
berries (De Kay). Small black caterpillars which infest the poidars of streets 
(Audubon). Caterpillars and diptera; larvge of carabidae, the vine-chafer ant 
long-horned beetles (Forbes). 
72. ViREO FLAViFRONS, ViEiLL. YELLOW-TIIROATED VIREO; 1ELL0^^- 
THROATED GREENLET. Group I. Class a. 
This Vireo is also a summer resident, and quite as numerous as the last spe¬ 
cies. Its haunts, with us, are somewhat intermediate between ohvaceus and 
gilmis, but approaching closer to the former. In the Eastern States, however, 
its haunts are more nearly those of the Warbling Vireo. In regard to this point 
Dr. Brewer says: “I have found none of this genus, not even the gilvus, so^ 
common in the vicinity of dwellings, or more familiar and feailess in its intei 
course with man. AU its nests that I have ever met with have been built in 
orchards and gardens, and in close proximity to dwellings.” It has been said to 
seek its food chiefly among the upper branches of trees. My experience has 
been to And it more commonly feeding low down, and especially among the 
under-brush. It even searches about old brush-piles for beetles. It is a stronger, 
coarser natured bird than any of the preceding, and appears to feed less upon 
caterpillars; but it promises to become quite as useful as gilvus. 
Food: Of twenty-one specimens examined, seven had eaten caterpillars — 
among them geometers; seven, beetles — among them weevils and a Buprestis; 
tlu’ee, grasshoppers; two, moths; two, heteropterous insects among them 
leaf-hoppers; three, dipterous insects. 
Principally winged insects (Wilson). Caterpillars, small moths, wild bees and 
wasps (Audubon). Chiefly insects; later in the season various small berries 
(Brewer). Moths, caterpillars, diptera (Forbes). 
73. VIKEO SOLITAEIUS, ViEiLL. SOLITAUY VIREO; SOLITARY GREEN- 
LET. Group I. Class a. 
This bird is an uncommon bird wherever I have collected, and I have obtained 
it only in May and September. Low, damp woods, and the thickets bordering 
streams are some of its haunts. Mr. Nelson speaks of it as abundant during the 
migrations, and found everywhere in woods and thickets in Northeastern Bh- 
nois Dr. Brewer records an instance of a pair once nesting near his dwelling. 
This nest became the receptacle for two Cowbirds’ eggs, which were removed. 
Subsequently, the nest was pillaged by the Black-billed Cuckoo. 
Food: One specimen of three examined had eaten two caterpillars, one beetle 
and a hymenopterous insect. 
Insects and berries (De Kay). 
.74. VIREO NOVEBORAOENSIS (Gm.), Bp. WHITE-EYED VIREO; WHITE-EYED 
GREENLET. Geodp I. Class a. 
Dr. Brewer states that this Vireo is one of the most common and one of the 
most widely diffused of its genus in all parts of the United States east of the 
Rocky Mountains, and that it breeds abundantly in the Northwestern States, 
Illinois Iowa, and Wisconsin. The bird, however, must be rare in the places I 
have visited, for I have never met with it. Its usual haunts are said to be t le 
wild, swampy, open punds near the edges of woods, and where there are 
thickets of smilax, briers and wild vines. 
Food: Insects and berries (De Kay). Canker-worm (Brewer). 
