April 1904] BIRDS OF THH HUACHUCA MOUNTAINS, ARIZONA. 39 



single birds. If more than one was seen at a time they made no effort 

 to keep together when startled, but usually went in different directions. 

 Specimens taken the third week in April were undergoing a slight moult, 

 usually restricted to the chin, throat and upper breast. In such as have 

 completed this change, the plumage of these parts is of a decidedly more 

 buffy hue than in those taken earlier in the season, in which it is gen- 

 erally almost pure white. Aside from this, ahnost the only variation in 

 the specimens collected is in the markings of the pileum ; in some the 

 ■dark streakings being destricted almost entirely to the sides, leaving a 

 broad, well defined, median line of buff", while others have the whole 

 crown almost equally strealced with dusky. 



Coturniculus savannarum bimaculatus (Swainson). Western Grasshop- 

 per Sparrow. 

 A rare migrant. In 1902 I secured a female on March 31st, and a 

 pair on April 4th ; the following year a male was taken on April 5th. 

 These were all shot in a field at the base of the mountains, about 4500 

 feet, altitude, and are all that I have seen in this regoin. 



Chondestes grammacus strigatus (Swainson). Western Lark Sparrow. 

 This species proved to be an exceedingly abundant summer resi- 

 dent in the washes below the mountains, arriving about the middle of 

 April. Though so common along the base of the mountains, I never met 

 with any above the very entrance of the canyons. 



Zonotrichia leucophrys (Forster). White-crowned Sparrow. 



I found this species, together with '^amhcli, very abundant alont^ 

 the San Pedro River during the latter part of March and throughout 

 April, but they appeared in the Huachucas in but very limited numbers 

 The first seen in the mountains were secured on April 7th, and a few 

 others were observed at various times up to May 13th, when a pair of 

 l)irds were shot, none being detected above 5000 feet. Most of the speci- 

 mens taken early in May show more or less traces of moult on the head, 

 throat, and dorsum. 



Zonotrichia leucophrys gambeli (Nuttall). Intermediate Sparrow. 



Very rare in the Hviachuca Mountains, though, as I before indicated, 

 more abundant along the valley of the San Pedro. Even there, how- 

 ever, it is outnumbered by true leucophrys two to one, and the only 

 positive record I have of its occurrence in the mountains is one immature 

 female taken March 24, 1903. 



Spizella socalis arizonae Coues. Western Chipping Sparrow. 



This species probably remains in the Huachucas through the winter, 

 for on my arrival in the mountains on February 17, 1903, I found large 

 flocks of Chipping Sparrows everywhere in the oak region, and they 

 remained in the greatest abundance all spring. Though not breeding in 

 this region they remain very late, being abundant up to the first of May; 

 and I saw some as late as May 15. In 1902 they appeared in the fall 

 about the first of August, and were soon quite abundant, though not as 

 much so as in the spring. All that were seen at this time were adults in 

 very worn plumage, many of them ragged and moulting. None were 

 seen at a higher altitude than 5000 feet. 



Spizella breweri Cassin. Brewer Sparrow. 



Occurring in company with the Chipping Sparrow in the spring, but 

 in much smaller numbers, and leaving at rather an earlier date. I saw 

 none in August or September up to the time I left the mountains. 



