FEMALE CCERULEAN WARBLER. 
SYLVIA AZUREA. 
Plate XI. Fig. 2. 
See Wilson’s American Ornithology , Ccerulean Warbler , Sylvia coerulea,\ ol. II, p. 141, 
PI. 17, fig. 5, for the Male. 
Sylvia azurea, Stephens, cont. Shaw’s Zool. X, p. 653. Nob. Obs. Jour. Ac. Nat. Sc. 
Ph. IY, p. 193, Male. 
Sylvia bifasciata, Say, in Long's Exp. to the Rocky Mountains , I, p. 170, Male. 
Philadelphia Museum , No. 7309, Male; 7310, Female. 
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 Wilson 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 exceeded under the fostering 
hand of the most powerful government. To the no less zealous 
researches of Mr. Titian Peale, the discovery of the female is 
recently owing, who moreover evinced his sagacity by deter¬ 
mining its affinities, 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 first of August, 1825. 
It was very active, skipping about on the branches of an oak. 
