"7/1 Henshaw 071 Birds observed in JWw Mexico. [January 



31. Zonotrichia leucophrys. White-crowned Sparrow. — Present 

 only as a rare migrant, it being too far south for the species to breed. 



32. Zonotrichia intermedia. Ridgway's Sparrow. — Rather common 

 as a migrant. None of course breed, as none are known to do so within 

 the United States. 



33. Spizella socialis arizonae. Western Chipping Sparrow. — An 

 abundant summer resident. Very abundant in the weed patches Sept. 8. 

 Up to this time not a single bird had been seen in the fall dress, all being 

 in the plumage of the young, /. c., streaked beneath. Later individuals in 

 the fall plumage became more common. 



34. Junco caniceps. Gray-headed Snowbird. ^ — ^This is one of the 

 commonest summer resident.s found in the mountains, and occurs every- 

 where throughout the timber belt above an altitude of 6000 feet. The old 

 birds were leading their broods about in the spotted plumage at the time 

 of our first arrival, July 18, and the species continued to be equally common 

 up to the last of October, the places of such birds as migrated further 

 south being filled bv others from points further north. 



35. Junco oregonus. Oregon Snowbird. — Though by no means so 

 nuiTierous as the bird just named, this Snowbird became pretty common 

 after October i, and in every Hock of Snowbirds there was a fair sprink- 

 ling of" tills species, to be recognized from its comrades by its stouter form 

 and darker colors. 



36. Junco annectens. Pink-sided Snowbird. — ^ Made its appearance 

 a few days later than oregonus^ and not in such numbers. In a flock of 

 200 Snowbirds, perhaps 125 would be caniceps, 50 oregonus, and 25 annec- 

 tens. These figures represent about the average. Of the three, ore- 

 gon/tsis b. fir the greater wanderer. So far as known it does not- breed 

 anywhere east of the Sierras; yet in fall it is found in almost every flock 

 of Snowbirds in the region between that chain and the main ridge of the 

 Rocky INIountains, and as far south as the Mexican border. Neither of 

 the other species go so far south, or are dispersed longitudinally to any- 

 thing like the same extent. 



37. Peucsea cassini. Cassin's Finch. — ^ Curiously enough a single 

 specimen of this bird was taken close to the banks of the Pecos. No 

 locality could be less suited to its habits, and it evidently was a mere 

 straggler from the plains below. 



38. Melospiza lincolni. Lincoln's Finch. — Evidently does not occur 

 in summer. Tiie first was taken Sept. 12, after which date it became 

 tolerabl>- numerous in the weed patches. 



39. Pipilo maculatui megalonyx. Spurred Towhee. — Uncommon. 

 A pair or two passed the summer in the brush along the Pecos. 



40. Pipilo chlorura. Green-tailed Finch. ^ — Also uncommon. A 

 single brood was seen in the little valley below our camp, and a few stop- 

 ped on the migration. 



41. Pipilo fuscus mesoleucus. Canon Towhee. — Not found so high 

 up in the mountains as our camp, but extremely common at Glorietta, on 

 the railroad', and thence following up the river for some distance into the 

 foothills. 



