4 2 Sennett o// the Pcitciea nijiceps Group. [January 



Peucaea ruficeps boucardi (Scl.). Boucard's Sparruvv. 



Adult: Larger in every part than ruficeps. The crown patch alone of 

 the upperparts is dark chestnut, and is more restricted than in ruficeps. 

 The strongly marked edgings of the feathers gives the dorsal region a 

 brownish gray appearance. The centre of these feathers is brown, and 

 the shaft-lines are dark and more or less conspicuous ; very old and much 

 worn specimens have only traces of dark shaft-lines. Tail and wings 

 brown, edged with rufous. There is none of that rusty appearance which 

 predominates in ruficeps; sometimes traces of olive are noticed on the 

 gray of back. 



Toung : Similar to adult, but without any reddish brown on back, though 

 with black shaft-lines, thus giving the upperparts a dark gray appearance 

 with black streaks. 



Twelve adult males average: wing, 2.62; tail, 3.02; culmen. .50; tar- 

 sus, .81 inch. Females have wings and tails a little smaller. 



Habitat. Eastern Mexico (heights of Vera Cruz, Orizaba, Puebla, and 

 City of Mexico) and Texas (Kendall and Presidio Counties). 



Peucaea ruficeps scottii, subsp. nov. Scott's Sparrow. 



Adult: Large; tail averaging half an inch longer than in ruficeps\V\\\ 

 short and stout, but little if any larger than in ruficeps, and darker. Up- 

 per parts pale chestnut, edged very finely on crown but more strongly on 

 dorsal region with light ash. No dai-k shaft-lines. The edgings are not 

 so heavy as in ruficeps, and being of pale ash rather than of olive-gray, 

 give this form an ashy brown rather than a ferruginous appearance. This 

 same light ashy brown effect is plainly shown when compared with the 

 dark gray and black shaft-lines of i^o«c«r^/. This narrow edging of the 

 feathers gives the back a mottled rather than a streaked effect, as seen 

 both in ruficeps and boucardi. Underparts paler than in either ruficeps 

 or boucardi. Tail and wings brown edged with rufous. Fall and winter 

 specimens of young of the year are darker, and the chestnut of back is 

 redder and more in streaks. 



Tou7ig: Streaked above with reddish brown and gray. Below ash, light- 

 ly streaked with black, the lines being most pronounced upon the breast. 

 There is a slight wash of tawny on breast, sides, flanks, and under tail- 

 coverts. 



I give two specimens as types: (i)No. 5247, collection of G. B. Sennett, 

 collected by W. E. D. Scott, Pinal Co., Arizona, March 27, 1885. Col- 

 lector's No. 1979. Wing, 2.72; tail, 3.20; culmen, .44; tarsus, .32 inch. 



(2) Collection of American Museum, collector's No. 1884, collected by 

 W. E. D. Scott, Pinal Co., Arizona, March 14, 18S5. Wing, 2.65; tail, 

 3.15; culmen, .43; tarsus, .84. 



Thirty-two males average : wing, 2.63; tail,3.oS; culmen, .45; tarsus, 

 .81. Eleven females average : wing. 2.51; tail, 2.96; culmen, .445; tar- 

 sus, .Si. 



Habitat. Highlands of Arizona. New Mexico (Silver Springs) .? and 

 Western Texas (Presidio and Mitchell Counties) .^ 



