344 
PASSERIFORMES 
Nesting. Nest usually similar to that of the Red-eyed. 
Distribution. All forms of the species are southern. The White-eyed Vireo occurs 
in the eastern United States north to New York and Massachusetts and is only accidental 
in Canada. 
SUBSPECIES. The White-eyed Vireo is represented by several subspecies, the 
type form, the Northern White-eye (le Vireo aux yeux blancs du Nord) V. g. griseus being 
the only one that occurs in Canada. 
A bird of the south noted for its remarkable voice. This species is 
included here on the basis of a few records scattered along the southern 
borders of Ontario. 
632. Hutton’s Vireo. le vireo de hutton. Vireo huttoni. L, 4-75. The smallest 
of the Canadian vireos. Like a Warbling but generally darker, more dull olive above and 
below, with a pale, indistinct ring about eye and white wing-bars. 
Distinctions. As above. 
Field Marks. Like a small, dark Warbling Vireo, with pale eye-ring and white wing- 
bars. Likely to look more like a female Ruby-crowned Kinglet, except for size, than any- 
thing else. Its songs and notes are very distinctive and unlike those of any other bird 
it is likely to be confused with. 
Nesting. Nest semi-pensile, from forks of branch; of mosses lined with fine grass. 
Distribution. Western United States and Mexico. Occurring regularly in Canada 
only on southern Vancouver Island, rare on adjoining mainland. It is probably resident 
wherever found. 
SUBSPECIES. The type form the Northern Hutton’s Vireo (le Vireo de Hutton 
du Nord) Vireo huttoni huttoni is the form accredited to the Canadian section of its range. 
One of the most inconspicuous of our woodland birds. Its limited 
range and small numbers in Canada, combined with its retiring habits, keep 
it from being very well known by Canadian ornithologists. Alone among 
our vireos it is practically resident wherever found, and does not migrate 
in winter to a noticeable extent. 
628. Yellow- throated Vireo. le vireo A gorge jaune. Vireo flavifrons. L, 
5-95. Slightly smaller than the Red-eyed and larger than the Warbling Vireos. Head, 
cheeks, and back greenish; rump and tail slaty; breast 
and throat bright yellow; white below. Wings with two 
distinct bars. 
Distinctions. The bright yellow of the breast of this 
species is distinctive amongst the vireos. It has white 
wing-bars; the Solitary is the only other vireo within its 
range that has this character. In general coloration, the 
Yellow-throated Vireo is most like the Pine Warbler, but 
has considerably more white on the underparts and the 
yellow ends almost sharply at the lower breast-line. The 
finely hooked bill (Figure 426), of course, will distinguish 
it as a vireo. 
Field Marks. The bright yellow on throat will pre- 
vent confusion with any other vireo, and the larger amount of white and the decided 
termination of the yellow breast against it will separate it from the Pine Warbler. Its 
voice is much like that of the Red-eyed, but the notes follow each other more slowly. 
Nesting. Nest pensile, from fork of branch, of strips of bark, plant fibres, etc., lined 
with fine grasses and covered externally with lichens and spider webs. 
Distribution. Eastern North America. In Canada, only in the most southern parts 
of Ontario and Quebec west to and including southern Manitoba. 
A woodland and orchard bird. Besides its characteristic song it is a 
maker of many queer noises and has an extensive vocabulary. 
Figure 428 
Yellow-throated Vireo; 
natural size. 
