bler. The white eggs, heavily blotched with brown, are laid in May.

CHESTNUT-SIDED WARBLER

_Dendroica pensylvanica. Case 8, Figs. 43, 44_

Adults are distinguished by their chestnut sides,
yellow crown and wing-bars, but the young are
wholly different, silky white below, yellowish
green above. L. 5-1/2.

_Range._ Nests from northern New Jersey and, in
the Alleghanies, South Carolina, north to Canada;
winters in the tropics.

Washington, abundant T.V., Apl. 19-May 30; Aug.
10-Oct. 14. Ossining, tolerably common S.R., May
2-Sept. 24. Cambridge, abundant S.R., May 5-Sept.
10. N. Ohio, T.V., May 2-25. Glen Ellyn, rare
S.R., common T.V., May 1-Sept. 26. SE. Minn.,
common S.R., May 3-Sept. 15.

Scrubby second growths undergrown with bushes, roadside borders of trees
and bushes, and the brushy margins of woods are all resorts of the
Chestnut-side. Here he attracts our attention by his rather loud,
frequently uttered song, which strongly suggests that of the Yellow
Warbler. The nest is built within a few feet of the ground and the
white, brown-marked eggs are laid the latter part of May.

BAY-BREASTED WARBLER

_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 res