DENDROICA. 497 



much obscured ; streaks on chest, etc., and yellow 

 patches indistinct. Young : ~So yellow anywhere, 

 except sometimes on rump ; whole plumage 

 thickly streaked, above and below, with dusky 

 and grayish white ; tail much as in adult. Length 

 5.00-6.00, wing 2.75-2.85, tail 2.20-2.30. Nest usu- 

 ally low down, in coniferous trees. Eggs .70 X 

 .53, creamy white, pale creamy buff, or dull white, 

 spotted or blotched, chiefly on or round larger 

 end, with brown and lilac-gray, sometimes mixed 

 with smaller markings of blackish. Sab. Whole 

 of North America, but rare west of Eocky Moun- 

 tains, except along Pacific coast ; breeding from 

 northern border of United States northward ; win- 

 tering from about 40° southward to West Indies 

 and through Middle America to Panama ; breeds 

 in Jamaica. 



655. D. coronata (Linn.). Myrtle Warbler. 

 <7*. Similar to D. coronata, but throat yellow, and sides 

 of head dark plumbeous, without the white supra- 

 loral and postocular streaks, there being instead a 

 white spot on each eyelid. Adult male with mid- 

 dle and greater wing-coverts white, producing a 

 large patch on wing. Adult female with chest 

 ashy, more or less spotted with black, the wing 

 with two separated white bands. Length 5.12- 

 6.00, wing 2.85-3.20, tail 2.25-2.55. Nest in pine or 

 spruce trees, composed of strips of fine bark, pine- 

 needles, etc., lined with fine roots and hairs and a 

 few soft feathers. Eggs .67 X -52, dull olivaceous- 

 white, greenish white, or very pale dull greenish, 

 sparsely spotted and dotted with black, brown, and 

 lilac-gray. Sab. Western North America, north 

 to British Columbia, east to eastern base of Eocky 

 Mountains (accidentally to Massachusetts) ; win- 

 tering in valleys of western United States and 

 south through western Mexico to Guatemala. 

 656. D. auduboni (Towns.). Audubon's Warbler. 

 P- Crown plain grayish, without yellow spot. 



Adult male : Top of head plain bluish gray, lighter 

 around border (the superciliary region whitish) ; 

 lores and ear-coverts deep black ; back black, 

 sometimes mixed with yellowish olive-green ; 

 wings black, with a large white patch covering 

 both rows of coverts ; lower parts rich gamboge- 

 63 



