450 WOOD WARBLERS 
Remarks. — The white spot at the base of the primaries is the distinguish- 
ing mark of this species. 
Range. — E. N. Am. Breeds in Canadian and Transition zones, from n. 
Minn., cen. Ont., and ne. Que. s. to cen. Minn., s. Mich., s. Ont., Pa. (mts.), 
and n. Conn.; winters from Key West, Fla., southward; in migration casually 
to N. D., Nebr., Kans., Colo., and N. M.; accidental on the Farallon Islands. 
Washington, very common T. V., Apl. 19-May 30; Aug. 4-Oct. 9. 
Ossining, common T. V., Apl. 25-May 28; Aug. 26-Oct. 10. Cambridge, 
rather common T. V., May 10-25; Sept. 20-Oct. 10. N. Ohio, common 
T. V., Apl. 27-May 29; Sept. 5-Oct. 16. Glen Ellyn, common T. V., Apl. 
29-May 29; Aug. 25-Oct. 10. SE. Minn., uncommon T. V., May 11. 
Nest , of strips of bark, fine grasses, and pine needles, lined with hairlike 
black rootlets, in the heavier undergrowth of dense woods, usually within 
two feet of the ground. Eggs, 3-5, grayish white, with distinct and obscure 
olive-brown markings, chiefly about the larger ends, '68 x '50. Date, Litch- 
field, Conn., June 8; Lancaster, N. H., June 19; Kalamazoo Co., Mich., 
May 29. 
Where the range of this species reaches the Canadian zone, it nests 
in coniferous forests, but southward its summer home is in deciduous 
woods, always, however, with a dense undergrowth. Its call-note is a 
sharp, recognizable chip , its common song may be written zwee-zwee- 
zwee , but it is subject to much variation, indeed Thayer (in “Warblers 
of North America”) describes three additional songs. 
The male Black-throated Blue Warbler can be identified at sight, 
but his obscurely colored mate has been the cause of many a field 
student’s neckache. When flitting about with other Warblers it is 
difficult to observe any positive character by which to distinguish her; 
but the white spot at the base of the primaries is an unmistakable 
mark, if one can see it clearly. 
654a. D. Co eairnsi Cones. Cairn’s Warbler. Similar _ to D. c. 
ccerulescens but & with the back always more or less spotted with black, 
sometimes the center of the back being entirely black. Ad. $ generally 
darker than 9 of ccerulescens. While specimens of true ccerulescens not infre- 
quently show more or less black in the back, eairnsi is very rarely without 
this character. 
Range. — Breeds in Canadian and Alleghanian faunas in the Alleghanies 
from Md. to Ga.; winters in the West Indies. 
655. Dendroiea coronata {Linn.). Myrtle Warbler. (Fig. 119.) 
Ad. cf. — A yellow patch on the crown, rump, and each side of the breast; 
upperparts bluish gray, streaked with black; two white wing-bars; outer 
tail-feathers with white spots on their inner vanes near the tip ; throat white ; 
breast and upper belly heavily marked with black; lower belly white. Ad. 
9. — Similar, but with less black below; breast simply streaked with black; 
upperparts browner. Im. and ads. in winter. — Yellow crown-patch more or 
less concealed by brownish tips to the feathers ; rump bright yellow; yellow on 
the sides of the breast much reduced upperparts grayish brown, streaked 
with black; wing-bars grayish; tail with white patches; underparts soiled 
white, streaked with black. L., 5*65; W., 2'85; T., 2*25; B. from N., '29. 
Remarks. — The yellow patches on the crown, rump, and sides of the 
breast are characteristic of this species. 
Range. — N. A. except w. U. S. Breeds in Hudsonian and Canadian 
zones from tree limit in nw. Alaska, n. Mackenzie, cen. Keewatin, and cen. 
Ungava s. to n. B. C., s. Alberta, n. Minn., n. Mich., cen. Ont., N. H., and 
Maine, and mts. of N. Y., Vt. and Mass.; winters from Kans., Ohio Val- 
