346 The Ohio Journal of Science [Vol. XIX, No. 6, 



Passerculus rostratus rostratus (Cassin). 



Emheriza rostrata Cassin, Proc. Acad. Nat. .Sci. Phila., VI, October (Novem- 

 ber 1), 1852, p. 184 (seashore at San Diego, California). 



Chars, subsp. — Size rather large, upper surface and streaks on 

 lower parts refuscent brown. 



Measurements* — Male if wing., 69.09-74.17 (average, 71.88) mm.; 

 tail, 49.53-55.12 (53.34); exTDOsed culmen, 12.19-13.72 (12.95); height 

 of bill at base, 7.37-7.87 (7.(32); tarsus, 22.35-23.37 (22.86); middle 

 toe without claw, 15.75-18.03 (17.02). 



Female:! wing, 64.01-71.88 (average, 66.80) mm.; tail, 46.48- 

 54.36 (50.55); exposed culmen, 10.67-12.95 (12.19); height of bill at 

 base, 6.35-7.62 (7.37); tarsus, 21.59-23.62 (22.35); middle toe without 

 claw, 15.75-17.78 (16.26). 



Type locality. — San Diego, California. 



Geographic distribution. — Lower California, southern Cali- 

 fornia, southwestern Arizona, and northwestern Sonora, Mexico. 

 Breeds on Montague Island at the head of the Gulf of California, 

 and on opposite portions of Lower California and Sonora; north 

 along these shores to the mouth of the Hardy River in Lower 

 California, and to the mouth of the Colorado River. Winters 

 regularly south to Guaymas, in Sonora, and along both coasts of 

 Lower California and its islands to Cape San Lucas, Lower 

 California; west to the Pacific Coast of Lower California and of 

 southern California ; and north along the coast to Santa Barbara, 

 California. Casual north to Yuma and the Colorado River in 

 southwestern Arizona; Salton Sea, in southeastern California; 

 San Clemente Island and Santa Cruz in central western 

 California. 



Remarks. — The type of Emberiza rostrata, Cassin in the 

 Academy of Natural Sciences of Philadelphia we have examined 

 in the present connection, and it fortunately proves to belong 

 to the race to which authors have commonly applied the name 

 Passerculus rostratus. There is, however, in this subspecies, 

 as in all forms of the species, considerable variation in the shade 

 of the upper parts, but typical specim.ens are very brownish. 

 Birds from the Colorado River, Sonora, opposite the mouth of 

 the Hardy River, are all typical, and in worn plumage as early 

 as the latter jDart of March, as specimens collected on March 

 25 and 26, 1894, by Dr. E. A. Mearns show; and these birds were 



* Taken from Ridgway, Bull. U. S. Nat. Mus., No. 50, part I, 1901, p. 200. 

 t Fourteen specimens, from California, Lower California, and Sonora. 

 X Eleven specimens, from California, Lower California, and Sonora. 



