36 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



(11.4); width of bill at frontal antisB, 8-9 (8.7); tarsus, 14-16.5 (15.3); 

 middle toe, 15-17 (16. o).« 



Pacific coast district, from Cape St. Lucas (where resident) to British 

 Columbia (Vancouver Island, etc.); eastern Nicaragua (Rio Escondido), 

 in winter. 



Progne purpurea (not Hirundo purpurea Linnseus) Bonapakte, Compt. Eend., 

 xxxviii, 1854, 650 (California).— Baikd, Proc. Ac. Nat. Sci. Philad., 1859, 

 303 (Oape St. Lucas).— Cooper and Suckley, Rep. Pacific B. E. Surv., xii, 

 pt. ii, 1860, 186 (Fort Steilacoom and Nisqually Plains, Washington).— 

 Cooper, Orn. Cal., 1870, 113, part. 



Progne subis (not Hirundo -subis Linnseus) Baied, Review Am. Birds, 1865, 274, 

 part (Cape St. Lucas) .— Ridgway, Orn. 40tli Parallel, 1877, 439, part (San 

 Francisco and Sacramento, California).— Belding, Proc. TJ. S. Nat. Mus., i, 

 1878, 408 (Stockton and Marysville, California); v, 1882, 547 (San Jos6 del 

 Cabo, Lower California).— Anthony, Auk, iii, 1886, 169 (Washington Co., 

 Oregon).— EvERMANN, Auk, iii, 1886, 183 (Ventura Co., California).— Rath- 

 bun (S. F.), Auk, xix, 1902, 138 (Seattle, Washington, breeding). 



Progne subw hesperia Brewster, Descr. Sup. New Species Birds from W. N. Am. 

 and Mex., Jan. 31, 1889, 92 (Sierra de la Laguna, Lower California; coll. 

 W. Brewster) ; Auk, vi, April, 1889,' 92; Bull. Mus. Oomp. Zool., xK, 

 1892, 164 (Lower California; habits). — American Ornithologists' Union, 

 Auk, vii, 1890, 63; Check List, 2d ed., 1895, no. 611a.— Richmond, Proc. 

 U. S. Nat. Mus., xviii, 1893, 485 (Escondido R., Nicaragua, Sept. 13).— 

 Fisher, (A. K.), N. Am. Fauna, no. 7, 1893, 109 (Fort Tejon, California, 

 breeding). — Anthony, Zoe, iv, 1893, 243 (San Pedro Martir Mts., Lower 

 California, breeding from 2,500 ft. up). — Anthony, Auk, xii, 1895, 141 



« Fifteen specimens. 



Specimens from California and northward to Vancouver Island are decidedly larger 

 than those from the Cape St. Lucas district of Lower California, but since they do 

 not, so far as I am able to see, differ at all in color, should doubtless be referred to 

 the same form. Average measurements according to localityare as follows: 



Locality. 



MALES. 



Eight adult males from Cape St. Lucas 

 district 



Ten adult males from California 



One adult male from Vacouver Island . . . 



One adult male from Nicaragua (Blue- 

 fields, September) 



FEMALES. 



Three adult females from Cape St. Lucas 

 district 



Seven adult females from southern Cali- 

 fornia 



Four adult females from northern Cali- 

 fornia 



One adult female from Nicaragua (Eio 

 Escondido, September) 



Wing. 



ML 7 

 148.4 

 149 



137 

 139.6 

 146.5 

 145 



Tail. 



Exposed 

 culmen. 



70.8 

 75.3 

 77 



70.5 

 68.3 

 72.1 

 66 



11.1 



12.2 

 11.5 



12 

 11.2 



n.2 



11 



Width of 

 bill at 

 frontal 

 antise. 



.8.6 

 9 



Tarsus. 



14.9 

 15.1 

 15 



15 



15.7 

 15.1 

 15.4 

 15 



Middle 

 toe. 



17.1 

 16.9 

 17 



16.7 

 16.3 

 15.6 

 16.5 



Fork of 

 tail. 



18.9 

 20.4 

 23 



16 



17.8 

 16.5 

 18.5 

 14 



