SYLVICOLID.E — THE WARBLERS. 235 



slightly more pointed than the other. They measure .62 of an incli in 

 length and .49 in breadth. Their ground-color is a light ashen hue, or a 

 dull white, and this is more or less sprinkled with fine dots and blotches 

 of a light brown. For the most part these are groujied in a ring about 

 the larger end. 



Mr. li. Deane, of Cambridge, found this bird breeding near Lake Umba- 

 gog. Its nest was in the fork of a low spruce about three feet from the 

 ground. The nest contained four eggs, and was made of dry grasses, spruce 

 twigs, and rootlets. It was lined with fine black roots, being a rather coarse 

 structure for a Warbler. The eggs were nearly spherical, averaging .62 by 

 .51 of an inch. Their ground-color was a creamy- white, sparsely marked 

 with a few large blotclies of lilac and umber. 



Dendroica caerulea, Baird. 



CERULEAN WAKBLER; WHITE-THROATED BLUE WARBLER. 



Sylvia coemlea, Wils. Am. Orn. II, 1810, 141, pi. xvii, fig. 5. Sylvicolac. Swains. ; Jard. ; 



Rich. ; Bon. ; Aud. Orn. Biog. I, pi. xlix ; Nutt. Dendroica c. Baird, Birds N. Am. 



1858, 280 ; Rev. 191. — Gundl. Cab. Jour. 1861, 326 (Cuba ; very rare). —Samuels, 



579. Sylvia vara, Wilson, II, pi. xxvii, lig. 2. — Bon. ; Aud. Orn. Biog. I, pi. xlix. 



Sylvia azurea, Steph. Shaw, Zobl. X, 1817. — Bon. Am. Orn. II, 1828, pi. xxvii (9). 



— Aud. Orn. Biog. I, pi. xlviii, xlix ; Nutt. Sylvia bifasciata, Say, Long's Exped. 



I, 182-3, 170. Sylvia populorum, Vieill. Encyc. Meth. II, 1823, 449 (from Wilson). 

 Otlier localities : Bogota, Sclater, P. Z. S. 1857, 18. Panama R. 11., Lawrence, Ann. 



N. Y. Lye. 1861, 322. Yucatan, Lawr. Vcragua, Salv. 



Sp. Char. Male. Above bright blue, darkest on the crown, tinged with ash on the 

 rump ; middle of back, scapulars, upper tail-coverts, and sides of the crown, streaked with 

 black. Beneath white ; a collar across the breast, and streaks on the sides, dusky-blue. 

 Lores, and a line through and behind the eye (where it is bordered above by whitish), 

 dusky-blue ; paler on the cheeks. Two white bands on the wings. All the tail-feathers 

 except the innermost with a white patch on the inner web near the end. Female, green- 

 ish-blue above, brightest on the crown ; beneath white, tinged with greenish-yellow, and 

 obsoletely streaked on the sides ; eyelids and a superciliary line greenish-white. Length, 

 4.25 ; wing, 2.65 ; tail, 1.90. 



Hab. Eastern United States, north to Niagara Falls; Cuba (very rare); Guatemala; 

 Veragua, Panama, and Bogota. Not recorded from Mexico (except Yucatan), or West 

 Indies (except Cuba). 



The autumnal adult plumage of both sexes is, in every respect, exactly 

 like the spring dress. Young males in late summer are very similar to adult 

 females, but are purer white below, and less uniform greenish-blue above, the 

 dark stripes on sides of the crown and black centres to scapulars being quite 

 conspicuous ; the young female, at the same season, is similar in pattern to 

 the adult, but is dull green above, without any tinge of blue, and light buhy- 

 yellow below. 



There is considerable variation in adult males, especially in the width of 



