OF VIRGINIA 293 
HYPOTHETICAL. 
[658]. Dendroica cerulea (Wilson). Cerulean Warbler. 
Raner.—Eastern North America and northern South 
America. Breeds mainly in Austral zones from southeast- 
ern Nebraska, southeastern Minnesota, southern Michi- 
gan, southern Ontario, western New York, western Penn- 
svlvania, and West Virginia south to northeastern Texas, 
Louisiana, and central Alabama, and locally in western 
North Carolina, western Virginia, eastern Maryland, and 
central Delaware; winters from Panama to Peru; in mi- 
gration stragegles to New Mexico, Colorado, Rhode Island, 
Connecticut, New Jersey, and eastern Pennsylvania; 
casual in Cuba and the Bahamas. 
The last week in April, to May 1st, finds these warblers 
migrating northward through our mountain region, feed- 
ing in the higher tree tops, which altitude they prefer, 
even when nesting. Professor Smyth reports it as rare 
at Blacksburg May Ist and 2nd. Swampy spots or low- 
lands, with high trees, are favorite places for them to se- 
lect for nesting sites, all nests in my collection having 
been taken from thirty-five feet and over, above ground. 
The nests are placed near the extremity of the limbs, a 
compact structure of rootlets, bark fiber and fine bark, 
lined with finer material. The eggs number three to four, 
the white ground having a greenish tint, specked and spot- 
ted with dark brown, and fainter markings of lilac. Size, 
.65x.50. Their food is similar to that of the Redstart, 
Yellow-throated, and other warblers of the higher foliage. 
I did not find them breeding at Mountain Lake, but I have 
no doubt but that they bread sparingly all along the Alle- 
gheny Ridge. 
