LIST OF THE BIRDS OF COBHAM, VIRGINIA. 
7 
sonian Institution, has described* a nest containing young 
which he found on the Virginia side of the Potomac, June 
i2th, 1875. 
I was fortunate enough to find a nest containing four 
eggs at Cobham on May 19th, 1884. While walking 
along an unfrequented road through the woods, my atten¬ 
tion was attracted by the notes of a bird evidently in anxi¬ 
ety, and I found that they proceeded from one of these 
Warblers. I remained perfectly still and the bird soon 
betrayed the situation of its nest which, as usual, 
was placed on the ground. As far as I know, this is at 
present the most southern point from which the discovery 
of the nest of this species has been definitely reported, 
though the bird probably breeds much farther south. 
[I have not succeeded in detecting any of the Warblers 
of the genus Hclminthophila , except possibly the Nash¬ 
ville Warbler (.Hclminthophila Ruficapilla ). ] 
23. Dendroeca aestiva. Yellow Warbler. — 
Summer resident; common. Arrives April 26th. 
24. Dendroeca virens. Black-throated Green 
Warbler. —Spring and autumn visitant; rather common. 
Is to be seen in spring from April 30th to May 14th. 
Observed in autumn from September 29th to October 10th. 
25. Dendroeca coerulescens. Black-throated 
Blue Warbler. —Spring and autumn visitant; common. 
Is met with in spring from April 24th to May 12th. 
Observed in autumn from September 29th to October 8th. 
26. Dendroeca coronata. Yellow-rumped War¬ 
bler. —Spring and autumn visitant; common. Is met 
with in spring from April 24th to May 12th. Is to be 
found in autumn in October. Perhaps may be occasion¬ 
ally seen in winter. 
* Field and Forest (Bulletin of the Potomac side Naturalists Club,) Vol. 
I, p- 10. 
