■74 



REVIEW OF AMERICAN BIRDS. 



[part I. 



Locality. 



Buenos Ayres. 



Paraguay. 



Brazil. 



Bolivia. 



When 

 Collected. 



June, 18.59. 

 Oct. 1859. 



Received from 



Capt. T. J. Page. 



Walter Evans. 



Collected by 



12,376. Steamer Argentina. 12,372. Do. 16,338? Expl. of Parana. 16,330. Do. 



Polioptila plunibea. 



Polwptila plumbea, Baird, Pr. A. N. Sc. VII, June, 1854, 118.— Ib. Birds 

 N. Am. 1858, 382, pi. xxxiii, fig. 1. 



Hab. Arizona. 



The only specimens received additional to those nicntioned in 

 Birds N. A. are Nos. 11,541 and 11,542, collected at Fort Yuma, 

 by Lt. Ives. The species appears to be confined to Arizona. 



Polioptila caerulea. 



Motacilla caerulea, Linn. Syst. Nat. I, 1766, 337 (based on Motacilla 



parva casrulea, Edw. tab. 302). — Culicivora caerulea, Cab. Jour. 



1855, 471 (Cuba). — Polioptila caerulea, Sclater, P. Z. S. 1855, 11. 



— Ib. Catal. 1861, 12, no. 70.— Baird, Birds N. Am. 1858, 380. 

 Motacilla cana, Gm. S. N. I, 1788, 973. 

 ? Culicivora mexicana, BoN. Consp. 1850, 316 (not of Cassin), female. — 



Polioptila viexicana, Sclater, P. Z. S. 1859, 363, 373. — Ib. Catal. 



1861, 12, no. 71. 

 Figures : Vieill. Ois. II, pi. 88. — WiLi50N, Am. Orn. II, pi. xviii, fig. 3. 



— AcD. Orn. Biog. I, pi. 84.— Ib. B. A. I, pi. 70. 



Hah. Middle region of U. S., from Atlantic to Pacific, and south to Guate- 

 mala. Cuba, Gundlach and Bryant. 



A winter specimen, from near Cape St. Lucas, of P. cserulea, has 

 the ash of the back washed with a brownish tinge. I have not seen 

 this in any other specimens to anything like the same extent. 



After a careful examination of Mexican specimens, labelled P. 

 mexicana by Mr. Verreaux, and of others received from Guatemala, 

 I am unable to distinguish them from P. cserulea. One of these, 

 No. 22,418 (38,658 of Verreaux), has the black frontal line, and the 

 same pure bluish ash of northern specimens. The lores are perhaps 

 a little whiter than usual, not more so than in specimens from 

 Tamaulipas and Illinois. 



All these specimens from the south agree with northern cseridca 

 in the small, rather narrow, falcate first primary, scarcLly two-thirds 



