57. PLECTROPHENAX. 



57^ 



x'. Juv. sk. 

 y'. S ad. sk. 



s'. c? ad. sk. 

 a. J ad. sk. 

 /3. c? ad. sk. 

 y. c? ad. sk. 



8. $ ad. sk. 



e. $ ad. sk. 



f. J ad. sk. 

 »;. c? ad. sk. 

 6. 2 ad. sk. 

 t. Ad. sk. 



k. 2 ad. sk. 



X, (i. Ad. sk. 



v,t d; o, jr, $ ad. 



sk. 

 p, o\ Juv. sk. 

 v. Skeleton. 

 (f>. Skeleton. 

 X, V'- Sterna. 

 to. Sternum. 



Fort Dufferin, Manitoba 



(G. Dawson). 

 Fort Randall, Upper Mis- 

 somi River, Jan. 26 (E. 

 Coues; Sni.no.G3456). 

 Fort Simpson. 

 Lapierre's House. 

 Fort Good Hope. 

 Chicago, HI., Jan. 29 



(H. K. Coale). 

 Chicago, April 5 (H. K. 



Coale) . 

 Albany, New York 



(Hurst). 

 Bangor, Maine, Feb. 18, 



1885. 

 Sterling, Mass. (Mrs. 



Bonney). 

 Worcester. Mass., Dec. 



20, 1882. 

 Bitter Root Valley (J. 



PearaaS; Sm.no.17636). 

 Deer Creek, Nebraska, 

 March 4, 1860 (Dr. 

 F. V. Jlayden; Sin. 

 no. 19240). 

 British Columbia. 

 West side of Rocky Moun- 

 tains. 

 California. 

 Europe. 

 Europe. 

 England. 

 England. 



N. A. Boundary Commis- 

 sion. 

 U. S. Nat. Museum [P.]. 



B. R. Ross, Esq. [P.]. 

 B. R. Ross, Esq. [P.l. 

 B. R. Ross, Esq. [P.]. 

 R. B. Sharpe, Esq. [P.l. 



R. B. Sharpe, Esq. [P.]. 



Sclater Coll. 



H. K. Coale, Esq. [P.]. 



H. K. Coale, Esq. [P.]. 



R. B. Sharpe, Esq. [P.]. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



J. K. Lord, Esq. [C.]. 

 J. K. Lord, Esq. [P.]. 



Lord Walsingham [P.], 



Pmchased. 



Purchased. 



John Ingall, Esq. [P.]. 



J. Ray, Esq. [P.]. 



2. Plectrophenax hyperboreus. 



Plectrophenax hyperboreus, Riclgiv. Proc U. S. Nat. Mus. vii. p. 68 

 (1884) ; A. O. U. Check-list N. Amer. B. p. 263 (1886). 



Adult male in spring. Entirely pure whito, except the terminal 

 portion of the five outer primaries, which are chiefly black, for the 

 space of about 1*40 inch from the tip of the longest quill. Tail 

 pure white, the middle rectrices with a very small blackish spot 

 near the end of the inner web (almost obsolete on one feather). Bill 

 dull brownish, the tip dusky ; legs and feet deep black. Wing 4'65, 

 tail 3-10, culmen 0-45, tarsus 0'90, middle toe 0-60. (Ridgway.) 



Adult male in winter. Like the spring plumage described above, 

 but the pileum strongly tinged with rusty brown, the auriculars 

 washed with a paler shade of the same, and the jugulum with a 

 very faintly marked pale rusty collar, more distinct (but still faint) 

 on each side ; lower back and rump also faintly washed with pale 

 rusty. Black spots near ends of inner webs of middle rectrices 

 more distinct, and black on ends of primaries rather more extended, 

 that on inner web of outer quill reaching about 1*70 from the tip. 



VOL. XII. 2 p 



