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ee | Howe, Ranges of Wilson's and Willow Thrushes. 21 
table of measurements of specimens examined, a supplementary 
description of Hylocichla f. salicicola; as Mr. Ridgway’s descrip- 
tion is in some ways decidedly unsatisfactory. 
Upper parts ol’vaceous-tawny, ‘‘russet olive” particularly on crown, 
nape, back, scapulars and tail, most tawny on the rump. Under parts: 
throat almost immaculate and unmarked, breast suggesting swadusonit, 
dark olivaceous-butff, not light tawny buff like fwscescens, quite heavily 
marked with blunt arrow shaped spots of fuscous, especially in the fall, 
unlike the brownish more penciled markings of fuscescens; lower breast 
and belly white, tinged strongly with olivaceous on the sides and flanks ; 
with the greater, middle and 
99 
wings olivaceous-tawny “russet olive 
primary coverts tawny; cheeks tawny, but not lores, as in swadnsonit; 
upper mandible very dark brown, under horn color, ¢¢pped wth brown as 
tm swatnsonit, unlike fuscescens, whose under mandible is untipped in the 
spring and lightly if at all in the fall. 
Ridgway states that the breast in adult spring specimens “is 
only faintly or not at all spotted with darker,” which is hardly so, 
I think even in the very specimens he examined, this marking of 
the breast being one of the characteristics of sa/icicola; and his 
measurements, proving the race ‘‘averaging decidedly larger” 
than fuscescens, do not agree with mine taken from a much larger 
series than he tabulates, showing the males of sa/icicola to be only 
slightly larger, and the females slightly smaller than /wscescens, or 
no real material difference in size. 
For the use of specimens for comparison thanks are due to 
Dre Chas: WwW. Richmond, and’:Mr.. F.’W.. True of. the, U.7s; 
National Museum; Mr. Witmer Stone of the Academy of Nat-. 
ural Sciences, Phila.;° Dr. Walter Faxon, Museum Comparative 
Zoology, Cambridge; Mr. William Brewster of Cambridge; 
Mr. Paul Bartsch of Washington, D. C.; Mr. G. F. Dippie of 
Toronto, Canada, and Mr. H. B. Bigelow of Boston. 
