No wing-bars or white in the tail; adult with a partly concealed chestnut patch in the gray crown; eye-ring white. L. 4¾.
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 restless of the gleaning Warblers. It prefers birches, but is found in rather open growths of other trees. Its commoner song consists of a string of six or eight or more lively rapid notes, running into a rolling twitter. It has also a flight-song.
The nest is placed on the ground; the eggs, which are laid in May or early June, are white, spotted with reddish brown.
ORANGE-CROWNED WARBLER
Vermivora celata celata. [Case 7], Fig. 32
A dusky, olive-green bird, obscurely streaked below; without wing-bars or white patches in tail. L. 5.
Range. Chiefly the interior, nests from Manitoba northward; winters in Florida and the Gulf States.
Washington, casual T.V., two records, Oct. Ossining, A.V. Cambridge, rare T.V., in fall. Oct. 5-Nov. 15. N. Ohio, rare T.V., Apl. 27-May 21. Glen Ellyn, not common T.V., May 1-21; July 28-Oct. 7. SE. Minn., common T.V., Apl. 25-; Aug. 18-Oct. 16.
The Orange-crown is a rare fall migrant in the North Atlantic States, but common in Florida and southern Georgia in the winter. It frequents the upper branches of trees though, as with most members of its genus, it nests on the ground. Its call-note is a sharp, characteristic chip; its song is said to resemble that of the Chipping Sparrow.