348 REVIEW OF AMERICAN BIRDS. [PART I. 
ably: from .45-.75 of an inch. With the specimens before me I 
am unable to see any essential difference between eastern and 
western specimens. 
A young bird from Fort Simpson is not materially different from 
the adult, exhibiting no trace of the spots of immature Turdide 
and Sylvicolide. 
I am now inclined to consider the specimen upon which Vireo 
cassint was based to be only a dull-plumaged, winter skin of V. 
solitaria, with the under parts tinged with brownish-buff, and the 
olive shades obscured. I have never seen a specimen killed in 
eastern North America having this coloration, nor even making a 
decided approximation to it, but I can find no tangible characteristic 
of external form to distinguish them. 
Smith- Collec-) Sex Whe 
sonian| tor’s | and Locality. Gollected Received from Collected by 
No. No. | Age. . 
300 o | Carlisle, Pa. April 21,’41.| S. F. Baird. Sooo 
929 an 2 oe April 28,’43. ie ap abhi Bins (plied sococ 
29,273 | 1,421 | .. | Washington. Oct: 17, 761...) “DAW Prentiss. “| gs hse siete 
32,277 oe g | Liberty County, Ga. Bete Jos Leconte, | ool ou res etree 
te ste .. | Illinois. 554 FR. Kennitotte 71h Ut seecws 
4,727 aie .. | Mo. of Vermilion. | May 6. Lt. Warren. Dr. Hayden. 
11,064 a5 o& | Fort Bridger, Utah. | May 16. Cs Drexler: ¥ Pee) serene 
27,340 | 1,303 | O. | Fort Simpson. SAC B:: RB: Ross.) y,> up Peewee 
6,822 382 | ¢ | Ft. Steilacoom,W.T.| May 13,’56.) Dr. Suckley. §$|  ...... 
12,901 Aa .- | Napa Valley, Cal. ae AS: Graysons «vi heiress 
21,378 dc do | Yreka, Cal. June 10. W.. Mimbo 2 as eee 
25,398 | 2,245 | .. | Fort Tejon. Janes, 572) J. Kantus, et Ny ees 
10,229 aH s- “* [C. St. Lucas. Ae ee COE stra (Ree amen stecr 
39,360 4 @& | San Gertrude Mts., | Jan. 1861. ag Asie te tho 56 te 
37,497 42 | g& | Orizaba, Mex. Jan. 18, '65.| Prof. Sumichrast.| ..... ° 
38,158 oe 55 se ses Mo Botberin ge Gull gute 
(6,822.) Iris hazel. (10,229.) Type of V. cassini. 
Vireosylvia propinqua. 
Vireosylvia propinqua, BAIRD, 0. sp. 
Hab. Coban, Guatemala. 
(No. 20,402.) Top and sides of the head bluish-ash ; a line from bill to eye, 
eyelids and under parts, including vent and crissum, white. Upper parts 
olive green, this color extending on the sides of the neck as far as the ear 
coverts. Throat and breast tinged with yellowish, deepest on the lateral 
portion. Two white bands on the wing. Bill and legs plumbeous. Quills 
and rectrices as in solitaria. 
First or spurious primary very small, scarcely .30 of an inch; 2d quill 
equal to the 5th; the 3d longest. 
(No. 20,402.) Total length, 5.10; wing, 3.00; tail, 2.35; exposed portion 
of 1st primary, .26, of 2d, 2.18, of longest, 3d (measured from exposed base 
of Ist primary), 2.30; length of bill from forehead, .60, from nostril, .31, along 
gape, .66; tarsus, .72; middle toe and claw, .63; hind toe and claw, .47. 
