iSS6.] Scott on the Birds of Arizona. ^S? 



the San Pedro, in spring and fall, and breeds in small numbers in the San 

 Pedro region. 



45. ^gialitis semipalmata. Semipalmated Plover. — -This species is 

 doubtless common in the migrations about Tucson, where mj only record 

 was made in April, 18S3, when I saw inany. 



46. Colinus ridgwayi. Masked Bob-white. — Mj personal experience 

 with the 'Bob-white' of Arizona is limited to having seen and carefully ex- 

 amined all the material that Mr. Herbert Brown has acquired, which, I 

 believe, with the exception of the type of the male bird taken by Mr. F. 

 Stephens in Sonora, and described by Mr. Brewster, embraces all of the 

 known specimens of the species now in collections. 



Perhaps it may as well be said in this connection, though I believe it is 

 already recorded, that previous to Mr. Stephens's Sonora trip, Mr. Brown 

 had become aware that there was a 'Bob-white' in Arizona, and that he 

 showed me two mummies of the species during the spring preceding Mr. 

 Stephens's Sonora trip. And finally all of the United States records of the 

 species, so far as I am aware, are due to the careful study and work of Mr. 

 Brown. Up to the early part of the present year this record only em- 

 braced five individuals, but during the early spring past, Mr. Brown pro- 

 cured not only a considerable series of male birds, that must in certain 

 features modify the original description from the single bird obtained by 

 Mr. Stephens, but also a series of the female bird, which was up to that 

 time unknown, save from a somewhat imperfect bird that had not been 

 dissected. These birds have all been forwarded to Mr. Allen for more 

 complete description than we have had up to the present time. For 

 a description, so far as known, of the habits of the species I refer to 

 Mr. Brown's paper published in 'Forest and Stream' (Vol. XXV, p. 445, 

 December 31, 1SS5).* 



47. Callipepla squamata. Scaled Partridge. — This Quail is almost 

 as abundant on the dry mesas of the San Pedro slope of the Santa Catali- 

 na Mountains, up to an altitude of 3500 feet, as its congener C. gambeli. 

 It affects a more open country, however, though I have often seen flocks 

 of Qiiai Is where the two species were represented in about equal propor- 

 tions. In other localities as, for instance, near the Cottonwood Spring, 

 indicated on the map, it is very abundant in larger flocks, almost to the 

 exclusion of C gambeli. The little valley to the west of the Santa Cata- 

 lina range, where the road passes down from Old Camp Grant to Tucson, 

 is inhabited by both species in great abundance, and here, too, I have 

 seen flocks composed of the two associating apparently on the most friend- 

 ly terms. About Riverside the birds were very rare, nor did I find them 

 at Mineral Creek, but just about Florence they are common, and near 

 Tucson they are frequently to be met with. South of Tucson, in the neigh- 

 borhood of Qiiijotoa and on the plains about Barboquivari, Mr. Brown 

 says the species is particularly abundant. 



* [I have in press a special paper on this species, illustrated with colored figures of 

 both male and female. It will appear in tlie 'Bulletin' of the American Museum 

 of Natural History, Vol. I, No. 7, article XVI. A brief reference to Mr. Brown's 

 specimens may be fecund in the last number of, The Auk' (Vol. Ill, p. 275). — J. A. A.] 



