_Dendroica castanea. Case 8, Figs. 69, 70_
The adult male is unmistakable; the female has
chestnut on sides and crown, a grayish streaked
back and white wing-bars; the young bird in the
fall cannot, in the field, be certainly
distinguished from the young Blackpoll, but has
the underparts tinted with buff instead of with
yellow. L. 5-3/4.
_Range._ Nests from northern New England into
Canada; winters in the tropics.
Washington, sometimes abundant, usually uncommon
T.V., May 2-27; Aug. 29-Nov. Ossining, tolerably
common T.V., May 14-28; Aug. 5-Sept. 26.
Cambridge, rather rare T.V., May 15-25; Sept.
12-28. N. Ohio, common T.V., May 4-23; Sept.
7-Oct. 10. Glen Ellyn, tolerably common; T.V., May
8-June 5; Aug. 13-Oct. 4. SE. Minn., uncommon
T.V., May 13-; Aug. 18-Sept. 15.
The Bay-breast is one of the rarer members of its family. Most of us
know it only as a migrant passing northward in May and southward in
September, when it may be found in woodlands associated with other
migrating Warblers. Its song resembles that of the Black and White
Warbler. Mrs. Farwell describes it as "a poor, weak, monotonous
saw-filing note." The nest has been found in hemlocks 15-20 feet from
the ground. The white eggs, finely marked with shades of brown, are laid
in June.