PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 109 



dency toward the rufous phase ; all the markings, however, are as in the 

 grayish birds. The measurements of these specimens are as follows : — 



R.R. 



cf ad. 



R. K, 



9 ad. 



R. R. 



cf ad. 



R. R, 



cT ad. 



R. R. 



? ad. 



R. R. 



d ad. 



R.R. 



cf ad. 



ISTicasio, Marin County, Cal 



do 



Sacramento, Cal , 



San Pedro River, Arizona . 



Mount Carmel, S. Ill 



Fairfax County, Virginia. . 

 District of Columbia 



Mar. 2,1877 



Mar. -2,1877 

 June 21, 1867 



Oct. 4, 1873 



Oct. 7, 1876 



Nov. 4, 1876 



Dec. 7, 1874 



6. 30 

 6. 60 

 6. 70 

 6. 60 

 6. 40 

 6. 50 

 6. 35 



3. 50 

 3.65 

 3. 60 

 3. 70 

 3. 50 

 3. 70 

 3.25 



Three specimens in the rufous phase, also in my collection, measure 

 as follows : — 



953 



R. R. 



cf ad. 



954 



R. R. 



cf ad. 



2606 



R.R. 



? ad. 



Mount Carmel, 111 . . . 



do 



District of Columbia 



May 1,1869 

 July 30, 1870 

 Nov. 8, 1860 



5. 90 



6. 00 

 6. 50 



3. 20 

 3. 00 

 3. 60 



The first of these specimens inclines very decidedly, both in measure- 

 ments and plumage, to var. floridanus ; and, in view of the fact that 

 typical specimens of Ortyx virginianus floridanus, Tinnunculus sparve- 

 rius isabellinus, and other Southern forms occur in the same locality, 

 may be perhaps best referred to that form. 



j3. maccalli. 



Scops McCallii, Cass., Ulustr. B. Cal. Tex. &c. July, 1854, 180 (Texas ; Northern Mexico); 



in Baird's B. N. Am. 1858, 52; ib. ed. 1860, pi. xxxix (part). — Baird, Mex. 

 Bound. Survey, II, pt. iv, Birds, 1859, pi. 1 ; Cat. N. Am. B. Ib58, no. 50.— 

 Strickl., Orn. Syn. I, 1855, 200.— Scl. & Salv., Ibis, 1859, 220.— Gray, Hand-1. 

 I, 1869, 47. 



"Scops tricliopsis", Gray, Hand-1. I, 1869, 47 (Sharpe).-ScL. & Salv., Norn. 1873, 117 

 (Mexico; Guatemala). 



Scops asio var. enano, "Lawr.", Bidgw., Bull. Essex Inst. V, Dec. 1873, 200 (E. Mexico; 

 Guatemala): in B. B. & R., Hist. N. Am. B. Ill, 1874, 48 (do.). 

 Scops enano, Bouc, Cat. Av. 1876, 91 (Mexico). 



Scops asio, subsp. y. Scops enano, Sharpe, Cat. Strig. Brit. Mus. 1875, 118 (Mexico; 

 W. Mexico). 



Habitat. — Eastern and Northern Mexico ; Guatemala; Texas (Cassin). 



Diagnosis.— Wing, 5.60-5.90; tail, 3.10-3.50; culmen, .45-.50; tar- 

 sus, 1.00-1.15; middle toe, .70-.75. Gray phase (adult). — Similar to the 

 gray adult of 8. cassini, but toes bristled, the occipital collar nearly 

 obsolete, and the nuchal collar less distinct. Bed phase (adult)* — 

 Above dull rusty, much broken across the nape by a collar of pale oehra- 

 ceous spots, the whole surface elsewhere being also more or less mottled 

 with paler rusty than the ground-color, and relieved by ragged mesial 

 streaks of black. Lower parts pale rufous, each feather crossed near 

 the end by a wide white bar, and with two to three narrow, somewhat 

 irregular lines of blackish. 



Young, t — Above brownish-gray, transversely mottled with darker 

 and paler, and tvithout dusky shaft-streaks. Below grayish-white, with 



* DueDas, Guatemala. In Mus. Salvin & Godmau. 

 t Coban, Vera Paz. In Mus. Salvin & Godman. 



