VIREOS 427 
Nest, pensile, of grasses and plant fibers, firmly and smoothly inter- 
woven, lined with fine grasses, suspended from a forked branch 8—40 feet up. 
Eggs, 3-4, white, with a few specks or spots of black, umber, or rufous- 
brown, chiefly about the larger end, ‘76 x ‘55. Date, Cambridge, May 30; 
Holland Patent, N. Y., May 27; se. Minn., May 24. 
Unlike its cousin, the Preacher, the Warbling Vireo is not gen- 
erally distributed, but shows a decided preference for rows of shade 
trees, particularly rows of elms. It passes the greater part of its time 
in the upper branches, and is more often heard than seen. 
Although resembling the Red-eye in general appearance, its song 
is so different that singing birds need never be mistaken for that species. 
Instead of the Red-eye’s broken, rambling recitative, the song of the 
Warbling Vireo is a firm, rich, continuous warble with a singular alto 
undertone. 
628. Lanivireo flavifron (Vieill.). YELLOW-THROATED VIREO. Ads.— 
Upperparts bright olive-green, changing to gray on the rump and upper tail- 
coverts; greater and middle wing-coverts tipped with white, forming two 
distinct wing-bars; outer web of tertials edged with white; eye-ring, throat 
god breast bright yellow; belly white. L., 5°95; W., 3°05; T., 2°10; B. from 
., 36. 
Range.—E. N. Am. Breeds in Transition and Austral zones from se. 
Sask., s. Man., s. Ont., s. Que., and Maine s. to cen. Tex., cen. La., and cen. 
Fla.; winters from Yucatan and s. Mex. to Colombia; casual in winter in 
Cuba and the Bahamas. 
Washington, common S. R., Apl. 19-Sept. 29. Ossining, tolerably 
common 8. R., Apl. 30-Sept. 7. Cambridge, common 8S. R., May 6—-Sept. 
10. N. Ohio, common S. R., Apl. 25-Sept. 25. Glen Ellyn, not common S. R., 
May 2-Sept. 26. SE. Minn., common 8. R., Apl. 27—Sept. 15. 
Nest, pensile, of strips of bark, plant fibers, etc., interwoven, lined with 
fine grasses and covered externally with lichens, suspended from a forked 
branch 10-30 feet up. Eggs, 3-4, white, with a few specks or spots of black, 
umber, or rufous-brown, chiefly about the larger ends, ‘80 x ‘60. Date, 
New London, Conn., May 21; Cambridge, May 26; Holland Patent, N. Y., 
May 24. 
The Yellow-throated Vireo is a dweller in tree tops, and whether 
in woodland, orchard, or lawn, he seldom comes below the upper story 
of his home. But even at a distance his bright yellow breast is a con; 
spicuous mark, at once distinguishing him from other members of his 
family. 
If the Red-eyed Vireo is a soprano, the Yellow-throat is a con- 
tralto. He sings much the same tune, but his notes are deeper and 
richer, while they are uttered more deliberately and with greater éxpres- 
sion than those of his somewhat too voluble cousin. “See me; I’m 
here; where are you?” he calls, and at intervals repeats his question 
in varying forms. Sometimes he astonishes us by an intricate liquid 
trill which suggests the wonderful song of the Ruby Kinglet, but which 
unfortunately is sometimes marred by the scolding notes that precede 
or follow it. 
629. Lanivireo solitarius solitarius (Wils.). BLUE-HEADED ViREO. 
Ads.—Top and sides of the head bluish gray; eye-ring and lores white; back 
olive-green; greater and middle wing-coverts tipped with white, forming 
