600 MICHIGAN BIRD LIFE. 
mainly with brown and lavender, with a few dots of very dark brown and 
black. They average .68 by .49 inches. The late date at which eggs are 
found, and the fact that many observers have found the birds accompanied 
by scarcely fledged young in August, makes it fairly certain that this 
warbler often rears two broods. 
The song is quite characteristic but difficult to describe. It consists 
usually of four or five rather wheezy or nasal notes, given in quick succession 
and with a rising inflection, and suggesting in quality the song of the Black- 
throated Green Warbler, although perfectly distinct. At all times the 
bird seems fond of evergreen woods, yet during migrations it is found 
as often in the hardwoods as elsewhere, and during the nesting season 
is perhaps most abundant in mixed woods where there is a sprinkling of 
evergreens. 
The food consists mainly of insects, and we know of nothing in its food 
habits which merits special notice; it certainly is not injurious in any way 
and is doubtless one of those species which is always useful in keeping 
down the numbers of noxious insects. 
TECHNICAL DESCRIPTION. 
Adult male in spring: Above clear grayish-blue, bluest. on forehead and crown; chin, 
throat, and sides of head and neck, velvet black, this color extending in a stripe along 
each side of the breast; middle of breast, belly and under tail-coverts, pure white; wings 
black, glossed with blue, the coverts without any bars, but a conspicuous white patch 
at the base of the primaries; tail-feathers black, the outer three pairs with large white 
patches on the inner webs near the end; bill black. Female entirely different: Upper 
parts olive-green, usually with «a blue tinge on the crown and upper tail-coverts; chin, 
throat, and breast soiled or yellowish-white, becoming buffy on the belly and under tail- 
coverts; a conspicuous whitish line from the bill over and behind the eye; white spot at 
base of primaries small, but always visible; tail markings of the same size and shape as 
in the males, but dull ashy instead of white. In any plumage the white spot at base of 
primaries is diagnostic. Length 4.70 to 5.50 inches; wing 2.50 to 2.65; tail 2.05 to 2.25. 
Female rather smaller. 
273. Myrtle Warbler. Dendroica coronata (Linn.). (655). 
Synonyms: Yellow-rumped Warbler, Golden-crowned Warbler, Yellow-rump.— 
Motacilla coronata, Linn., 1766.—Sylvia coronata, Lath., 1790, Vieill., Wils., Nutt., 
Bonap., Aud.—Dendroica coronata or Dendrceca coronata of most later authors. 
Plate LX.* 
Streaked with black and white below, with black and bluish-gray above; 
crown and rump each with a bright yellow patch, and usually a yellow 
spot on each side of the breast. Two white wing-bars; the outer tail- 
feathers with white spots. 
Distribution.—Eastern North America, chiefly, straggling more or less 
commonly westward to the Pacific; breeds from the northern United States 
northward, and winters from southern New England and the Ohio valley 
southward to the West Indies and through Mexico to Panama. 
The Myrtle or Yellow-rump is a common migrant throughout the state 
and an irregular and somewhat scarce summer resident in its northern 
*This plate, taken from North Amcrican Fauna, No. 16, in reality represents Audubon’s Warbler: 
a Rocky Mountain species which very closely resembles our Myrtle Warbler, the principal difference 
being that the latter has the throat white instead of yellow. Since this dces not show in an uncolored 
plates a the cue is otherwise an excellent likeness of the Myrtle Warbler we have taken the liberty 
of using it as such. 
