416 
WOOD WARBLERS 
black rootlets; placed in small spruces and hemlocks, 3 to 35 feet from 
the ground. Eggs: 4 or 5, creamy, blotched or spotted with lilac and 
shades of brown. 
Food. — Insects. 
The handsome magnolia warbler is a rare migrant in Colorado, 
but whenever seen may be recognized as it goes about with wings 
drooping and tail spread enough to show its black terminal tail band. 
658. Dendroica rara (Wils.). Cerulean Warbler. 
Adult male. — Upper parts light grayish blue , crown bordered by two 
blackish stripes; back streaked with black; wings and tail black with gray¬ 
ish blue edgings, wings with two clear white bands; tail feathers broadly 
spotted with white ; under parts white, with narrow bluish throat band and 
bluish streaking along sides. Adult female : upper parts from light bluish 
gray to grayish olive green ; superciliary stripe, if present, pale greenish 
yellow like under parts; wings and tail as in male, but edgings greenish 
instead of bluish. Fall and winter adults : more highly colored. Young 
male in first autumn: like female, but whiter below and more bluish above. 
Young male , nestling plumage: upper parts gray, crown with median 
stripe, and dark postocular stripe ; sides of head and under parts white. 
Male: length (skins) 4.05-4.55, wing 2.44-2.66, tail 1.70-1.88, bill .37-.40. 
Female: length (skins) 4.10-4.35, wing 2.29-2.47, tail 1.62-1.68, bill .39- 
.41. 
Distribution. — Breeds in Upper Sonoran zone of the eastern central 
United States and Canada from Tennessee and Missouri to Michigan, 
western New York, and southern Ontario ; south in migration to western 
Texas, southern Mexico, Central America, northern South America, and 
rarely Cuba ; occasionally to Rocky Mountains. 
Nest. — In trees in high deciduous woods, 20-50 feet or more from the 
ground; compact, cup-shaped, composed largely of plant fibers, strips of 
fine bark, and spider web. Eggs: usually 3 or 4, white or dull greenish 
or bluish white, speckled with brown, chiefly around the larger end. 
Food. — Insects. 
659. Dendroica pensylvanica (Linn.). Chestnut-sided War¬ 
bler. 
Adult male. — Crown yellow, bordered with black; sides of head and 
neck and under parts white ; sides with broad stripe of chest¬ 
nut ; back striped with black and olive, mixed with yellowish. 
Adult female : like male, but duller, upper parts greener, 
black markings on head indistinct, and chestnut restricted. 
Young in first autumn: upper parts bright olive green ; wing 
Fig. 525. bars yellowish ; sides of head and body ash gray; median 
under parts white. Length: 4.60-5.25, wing 2.40-2.65, tail 1.95-2.10. 
Distribution. — Eastern United States and southern Canada, west to 
Manitoba and the Plains, accidentally to Cheyenne ; south in winter to the 
Bahamas, eastern Mexico, Central America, and Panama. 
Nest. — In small trees or undergrowth near clearings, loosely woven of 
stems, grasses, and plant fibers, lined with hairs. Eggs: usually 4, white 
or creamy, spotted with reddish brown and lilac, thickest around the larger 
end. 
661. Dendroica striata (Forst.). Black-poll Warbler. 
Adult male in spring and summer. — Crown black, rest of upper parts 
