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 

 Manitpba 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 



