FEMALE CCERULEAN WARBLER. 
387 
FEMALE CCERULEAN WARBLER SYLVIA AZUREA. 
Plate XI. Fig. 2. 
Wilsons American Ornithology, Ccendean Warbler, Sylvia coerulea, vol. ii, 141, pi. 
17, fig. 5, for tbe male. — Sylvia azurea, Stephens, Cont, Shaw's Zool. x. p, 653. 
Noh. Ohs. Jour. Ac. Nat. Sc. Ph. iv. p. 193> male. — Sylvia bifasciata, Say, in 
Long's Expedition to the Rocky Mountains, i. p. 170, male. Philadelphia Museum, 
No. 7309, male ; 7310, female. 
SYLVICOLA C(ERULEA.~Svf AiNSON. 
Male, vol. i. p. 283. 
The merit of having* discovered this bird is entirely due to 
the Peale family, whose exertions have contributed so largely 
to extend the limits of natural history. The male, which he 
has accurately described and figured, was made known to Wil- 
son by the late venerable Charles Wilson Peale, who alone, 
and unaided, accomplished an enterprise, in the formation of 
the Philadelphia Museum, that could hardly have been ex- 
ceeded under the fostering hand of the most powerful govern- 
ment. To the no less zealous researches of Mr Titian Peale, 
the discovery of the female is recently owing, who, moreover, 
evinced his sagacity by determining its afiinities, and pointing 
out its true place in the system. Although it preserves the 
principal characters of the male, yet the difference is sufficiently 
marked to deserve an especial notice in this work. 
The specimen here represented, was procured on the banks 
of the Schuylkill, near Mantua village, on the 1st of August, 
1825. It was very active, skipping about on the branches of 
an oak, attentively searching the leaves, and crevices of the 
bark, and at intervals taking its food on the wing, in the man- 
ner of the flycatchers. It warbled in an under tone, not very 
unlike that of the blue-grey flycatcher of Wilson, [Sylvia cmru^ 
lea^ L.) a circumstance that would lead to the supposition of 
its being a male in summer dress ; but on dissection it proved 
to be a female. 
