Blue-wing and Golden-wing. (Case 7, Fig. 38.)

A much rarer supposed hybrid between these two Warblers is known as
Lawrence's Warbler. It is yellow below, like the Blue-wing, but has the
black throat and cheeks of the Golden-wing. Some individuals sing like
the Blue-wing, others like the Golden-wing, and this is true also of
Brewster's Warbler. (Case 7, Fig. 37.)

The Blue-wing nests on the ground, laying 4-5 white delicately speckled
eggs the latter part of May.

GOLDEN-WINGED WARBLER

_Vermivora chrysoptera. Case 7, Figs. 34, 36_

A gray bird with a yellow patch on the wings and a
black or blackish breast.

_Range._ Nests from northern New Jersey and
southern Iowa north to Massachusetts and central
Minnesota and south in the mountains to northern
Georgia; winters in the tropics.

Washington, uncommon, T.V., May 1-30; Aug. 8-21.
Ossining, rare S.R., May 8-Aug. 25. Cambridge,
rather common S.R., May 12-Aug. 25. N. Ohio, rare
T.V., Glen Ellyn, irregular, not common T.V., May
4-18; Aug. 16-Sept. 24. SE. Minn., common S.R.,
May 5-Sept. 9.

The Golden-wing's _zee-zee-zee-zee_ resembles the Blue-wing's song in
tone but the syllables are all on one note. When nesting, the
Golden-wing prefers second growths, and birches, but when migrating it
may be found in the woods with others of its family. The nest is made
on the ground, and the eggs, which resemble those of the Blue-wing, but
are more heavily marked, are laid in May or early June.

NASHVILLE WARBLER

_Vermivora rubricapilla rubricapilla. Case 7, Fig. 33_

No wing-bars or white in the tail; adult with a
partly concealed chestnut patch in the gray crown;
eye-ring white. L. 4-3/4.

_Range._ Nests from northern Pennsylvania and
Nebraska to Canada; winters in the tropics.

Washington, uncommon T.V., Apl. 28-May 19; Sept.
5-Oct. 2. Ossining, tolerably common T.V., May
7-27; Aug. 11-Oct. 4; may breed. Cambridge, rather
common S.R., May 5-Sept. 15; abundant T.V. N.
Ohio, common T.V., Apl. 28-May 27; Sept. 1-Oct.
16. Glen Ellyn, regular T.V., Apl. 27-May 25; Aug.
20-Oct. 19. SE. Minn., common S.R., May 1-Sept.
29.

Thayer in "Warblers of North America" says that the Nashville is one of
the most agile and rest