130 
Bicknell on the Carolinian Fauna 
general brownish and deep huffy suffusion, very similar to the color of dead 
leaves, especially on the breast, and rendering their detection when among 
the leaves of their favorite haunts very difficult. Does not this adaptation 
of color to environment in the case of these helpless young appear to be an 
instance of protective mimicry ? 
Helminthophaga pinus. Blue-winged Yellow Warbler. Com- 
mon during the summer, and regularly breeding. Arrives after the first 
week in May (May 2, in 1878), and incubation commences by the last of 
the month. 
« • 
Helminthophaga chrysoptera. Golden-winged Warbler. — 
Though this species must be of somewhat regular occurrence, I have but 
one record from the immediate vicinity, a male seen on May 11, 1875. 
Oporornis formosus. Kentucky Warbler. — Have taken but one 
specimen in the vicinity, an adult male on May 30, 1875. Mr. J. Wal- 
lace informs me that this species occurs during the breeding-season, at Fort 
Lee, N. J., and that some years since a nest and five eggs with the female 
bird was taken at that locality. Has been found breeding at Sing Sing, 
by Mr. A. K. Fisher, N. Y* * * § 
Myiodioctes mitratus. Hooded Warbler. — Within the confines of 
a tract of somewhat elevated though diversified woodland, this species 
may be seen or heard every day in the early summer after the middle of 
May, though only on rare occasions has it been noted at other places in 
the vicinity. In these woods the ground reaches an elevation of (approxi- 
mately) two hundred and fifty feet, very nearly as high as any land in the 
vicinity, and here these birds may be found breeding indifferently on the 
open or wooded summits, or at their base near the low swampy growth 
bordering the woods. Owing to the encroachment of the Cow Buntings, 
but a single bird was reared between two nests which I discovered in 
1875. I have females in my collection representing well the state of plu- 
mage recently spoken of by Mr. Merriam,f and by Mr. E. A. Mearns,J of 
Highland Falls. In one of these birds the black, though well defined in 
the region of the occiput, is scarcely detectible on the throat ; while another, 
though less definitely marked, represents an almost opposite phase. This 
bird also breeds abundantly at Fort Lee, N. J., in company with H. ver- 
mivorus and H. pinus, and all three also occur at West Farms, N. Y. § 
Stelgidopteryx serripennis. Bough-winged Swallow. — This spe- 
cies is a regular summer visitor, arriving about the last week in April, 
and though not uncommon in the spring, but few remain to breed. By 
the first week in August, however, the species again appears, apparently 
* Am. Nat., Yol. IX, p. 573. 
+ Review of the Birds of Conn., pp. 25, 26. 
£ This Bulletin, Vol. Ill, pp. 71, 72. 
§ W. G. Stevens. Forest and Stream, Vol. VI, p. 215. 
