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GREEN, GREENISH GRAY, AND OLIVE 451 
632. HUTTON VIREO. — Vireo huttonz. 
Famity: The Vireos. 
Length: 4.25-4.75. 
Adults ; Lores and eye-ring dull whitish ; upper parts plain olive-brown ; 
green on rump, wings, and tail ; narrow white wing-bars ; under parts 
dull whitish, tinged on sides with olive-yellow. 
Young: Similar, but upper parts lighter brown, sides of head buffy 
brown ; under parts paler. 
Geographical Distribution ; California. 
California Breeding Range: West of the Sierra Nevada in upper Sono- 
ran and Transition zones, 
Breeding Season: March to June. 
Nest: Neat, compact structure; made of fine vegetable fibres, bits of ° 
paper, and grasses ; covered on the outside with moss, and lined with 
grasses ; placed in trees, from 8 to 10 feet from the ground. 
Eggs: 4; white, finely dotted with reddish brown, especially at the 
larger end. Size 0.69 X 0.51. 
IN the valleys and foot-hills of California the Hutton 
Vireo builds its nest among the branches of the scrub 
oaks. In the materials used it is quite unlike any vireo 
nest found in the East, for moss forms a large part of its 
composition. Sometimes the external adornment alone 
consists of bits of moss woven in with shreds of spider 
web; but occasionally the entire nest will be so draped 
as to look like a bunch of moss tangled at the fork of a 
light branch, and will deceive the eyes of an expert 
collector. But the bird himself has no talent for mis- 
leading you. Fis clear, emphatic warble tells you where 
he is and what he is doing ; for, in the tenderest phras- 
ing of it, there comes an undertone of business, and sure 
enough he is prosaically hunting his dinner while sing- 
ing between mouthfuls. Under every one of the green 
