CERULEAN WARBLER. 
283 
CERULEAN WARBLER SYLVIA CCERULEA. 
Plate XVII. Fig. 5. 
Peale's Museum, No. 7309. 
SYL VICOLA CCER ULEA. — Swainson. — Male. * 
Sylvia azurea, JBonap. Synop. p. 85. — Sylvia azurea, Azui'e Warbler, Steph. Sh. Zool. 
x. p. 653. — Sylvia coerulea, Cerulean Warbler, Steph. Sh. Zool. x. p. 652. —Sylvia 
bifasciata, Say, Journ. to Rocky Mount, i. p. 170 Tbe Azure Warbler, Sylvia 
azurea, Aud. pi. 48, male and female ; Orn. Biog. i. p. 255. 
This delicate little species is now, for the first time, intro- 
duced to public notice. Except my friend, Mr Peale, I know 
of no other naturalist who seems to have hitherto known of its 
existence. At what time it arrives from the south I cannot 
positively say, as I never met with it in spring, but have 
several times found it during summer. On the borders of 
streams and marshes, among the branches of the poplar, it is 
sometimes to be found. It has many of the habits of the 
Flycatcher ; though, like the preceding, from the formation 
of its bill, we must arrange it with the Warblers. It is one 
of our scarce birds in Pennsylvania, and its nest has hitherto 
eluded my search. I have never observed it after the 20th of 
August, and therefore suppose it retires early to the south. 
This bird is four inches and a half long, and seven and a 
half broad ; the front and upper part of the head, is of a fine 
verditer blue ; the hind head and back, of the same colour, but 
not quite so brilliant ; a few lateral streaks of black mark the 
upper part of the back ; wings and tail, black, edged with sky 
blue ; the three secondaries next the body, edged with white, 
and the first and second row of coverts also tipt with white ; 
tail-coverts, large, black, and broadly tipt with blue; lesser 
* Female figured, Vol. III. PI. XI, — -the continuation by Bonaparte. 
