170 BIRDS OF OHIO. 
233. (628.) VIREO FLAVIFRONS Vieill. 69. 
Yellow-throated Vireo. 
Synonyms: Vireosylvia flavifrons, Lanivireo flavifrons. 
Yellow-throated Greenlet. 
Kirtland, Ohio Geol. Surv., 1838, 163. 
Most people are not acquainted with this vireo, probably 
because it prefers the taller timber and is seldom seen about 
human habitations. It is hardly common as a summer res- 
ident except in certain localities where tall oak timber is 
plentiful. Its song closely resembles the song of the Red- 
eyed, but may be readily distinguished after careful study 
of both. 
This species arrives during late April, perhaps a little 
later than the two foregoing species, and remains until Sep- 
tember. 
234, (629.) Vireo soLitartus. (Wils.). 70. 
: Blue-headed Vireo. 
Synonyms: Lanivireo solitarus, Muscicapa solitaria. 
Solitary Vireo, Solitary Greenlet, Blue-headed Greenlet. 
Wheaton, Ohio Agri. Report, 1860, 365, 375. 
Like the Yellow-throated Vireo, this is little known, part- 
ly because it seldom gets out of the woods, and partly be- 
cause it is strictly a migrant across the state. Its song has 
a fairly close resemblance to the song of the Red-eyed Vireo, 
but it is not difficult to distinguish after a little study. I 
have found the Blue-headed on the College campus and in 
the shade trees lining our streets. 
This vireo reaches Lorain county the first week in May, 
usually near the first ; or even the last days of April, is fairly 
common for a week, and passes north about the 15th ‘of 
May. It returns about the middle of September, remaining 
but a short time. It leaves southern Ohio shortly after the 
middle of October. A better acquaintance with this bird 
will undoubtedly prove it to be not uncommon during the 
migrations across the state. 
