G4. HETEKOPYGIA. 



565 



The old birds of //. acuminata aud //. maculata appear to me to 

 be perfectly distinct, and even the young birds can, as a rule, be 

 distinguished. There are, however, some specimens from British 

 Columbia which are intermediate, and appear to justify Mr. Seebohm's 

 belief that the two species intergrade. 



Hah. North America, breeding in the Arctic Regions and 

 migrating south in winter as far as Patagonia and Chili. Ac- 

 cidental in Europe. 



a. c? ad. sk. 



b, c. £ ad ; d. $ 

 ad. sk. 



e. rf juv. ; f-i. $ 



ad. sk. 

 k. Ad. sk. 

 /, m. Ad. st. 

 n, o,p. Ad. sk. 

 q. Juv. sk. 



r. Ad. sk. 



s. Ad. sk. 



t. Ad. sk. 



u-a'. Ad. et juv. sk. 



b'. cJ juv. sk. 



c'. J ad. sk. 

 d'. J ad. sk. 



e'. Ad. sk. 



/. Juv. sk. 



ij ', h' . $ ad. sk. 



t". $ ad. sk. 



k', I'. Ad. sk. 



»»'. cJ; n', o'. 2 ad. 



sk. 

 ]>'.>/', r'.cJ; s',t',u'. 



2 ad. sk. 

 r. Ad. sk. 



to'. cJ ad. sk. 



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y' . d ad. sk. 



s'. 2 ad. sk. 



a"-e". <$ J ad. sk. 



Point Belcher, Alaska, Aug. 



( T. II Bean). 

 Point Barrow, Alaska, June 



28 (J. Murdoch). 

 St. Michael's, May, June, 



Sept. (E. W. Nelson). 

 Arctic America. 

 N.W. America. 

 Repulse Bay. 

 Albany River. 



Fort Simpson. 



Labrador. 



Canada. 



British Columbia. 



Lake Superior, Sept. 24 (A. 



J. Day an : Ilensh. Coll.). 

 Long Island, N. Y. 

 Michigan, Sept. 24 (A. J. 



Day an: Hensh. Coll.). 

 Illinois, May 12 (E. W. 



Nelson : Hensh. Coll.). 

 Washington, D. C. (C. 



Drexler). 

 Lake Borgue, Louisiana, 



.March, April (H. TV. 



Henshaw). 

 Florida, Aug. 21 ( W. Hoxie : 



Hensh. Coll.). 

 Bermudas, Oct. 



Brownsville, Texas, April, 



May (F. B. Armstrong). 

 Corpus (Miristi, Texas, Nov. 



(/•'. B. A.). 

 San Antonio, Texas (//. E. 



Dresser). 

 Bio Medina, Texas, May 



(11. E. Dresser). 

 San Pedro, Texas (H. E. 



"Dresser). 

 Ma ta moras, Mexico, Aug. 4 



[11. A'. Dresser). 

 Altainhw, Tamaulipas, May 



( W. IS. Richardson). 

 Zacatecas, Aug. ( W. B. 



Richardson). 



Soebohm Coll. 



Salviu-Godman Coll. 



Salvin-Godman Coll. 



Sir G. Back [P.]. 

 Capt. Collinson [P.]. 

 Dr. J. Rae [P.]. 

 G. Branston, Esq. 



[P.]. 

 B. R. Ross, Esq. 



[P.]. 

 Gould Coll. 

 Seebohm Coll. 

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

 Salvin-Godman Coll. 



Seebohm Coll. 

 Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Capt. Savile Reid 



[0.1. 

 Salvin-Godman Coll. 



Salvin-Godman Coll. 



Hume Coll. 



Salvin-Godman Coll. 



Could Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



