52 PACIFIC COAST AVIFAUNA No. 10 



223. Rhynchophanes mccowni (Lawrence). 



MCCOWN LONGSPUR. 



Synonym — Plectrophancs maccownii. 



Status— Occurs in the same manner as Calcarius ornatus, and over practi- 

 cally the same territory in eastern Arizona. It is more irregular in its appear- 

 ance and usually not as abundant as the Chestnut-collared Longspur. Reported 

 from Fort Bowie, Fort Apache. St. Johns, Sulphur Spring Valley, Fort Huachuca, 

 and Fort Lowell. 



224. Pooecetes gramineus confinis Baird. 



Western Vesper Sparrow. 



Synonyms — Zonotricliia granunca; Pooecetes gramineus. 



Status — The only breeding records are from the Mogollon and San Francisco 

 mountains (Mearns, 1890a, p. 259), and Fort Whipple (Coues, 1866a, p. 84). 

 It is exceedingly abundant in winter and during the migrations, throughout 

 southern Arizona and along the valley of the Colorado River. 



225. Passerculus sandwichensis alaudinus Bonaparte. 



Western Savannah Sparrow. 



Synonyms — Passerculus saz'anna; Passerculus alaudinus, part; Ainnio- 

 dranrus sandzvichensis alaudinus. 



Status — A migrant and winter visitant in the valleys of southern Arizona 

 and along the Colorado River. There are but few records of the occurrence 

 of the species, and it does not appear to have been found anywhere in abundance. 



226. Passerculus sandwichensis nevadensis Grinnell. 



Nevada Savannah Sparrow. 



Synonym — Passerculus alaudinus, part. 



Status — The record by Coues ( 1866a, p. 84) of the occurrence of a Savannah 

 sparrow as a common summer visitant at Fort Wdiipple probably pertains to this 

 subspecies. Three specimens taken on the Colorado River, two near the mouth of 

 Bill Williams River, March 13, and one five miles north of Laguna, April 22, 

 1910 (Mus. Vert. Zool.). 



227. Passerculus rostratus rostratus (Cassin). 



Large-billed Sparrow. 

 Status— "Casual in Arizona" (A. O. U. Check-List, 1910, p. 255). This 

 record was based on a specimen taken August 15, 1902, at Yuma, by Herbert 

 Brown, and sent to the Biological Survey for identification, according to in- 

 formation received by me from Mr. W. W. Cooke. 



228. Ammodramus bairdi (Audubon). 



Baird Sparrow. 



Synonyms— On/r0»Y.r bairdi; Passerculus bairdi; Coturniculus bairdi. 



Status — Common migrant on the open grassy plains of the extreme south- 

 eastern corner of the state, reported from Camp Grant, Camp Crittenden, and 

 the vicinity of the Huachuca Mountains. A few probably remain through the 

 winter in favorable localities. 



