142 EXPLORATIONS AND SURVEYS WEST OF 100TH MERIDIAN. 



victim to one of these animals. The molt is protracted till very late, as, 

 though completed by November 15 7 many of the feathers were but 

 partially developed, with the stems still soft. 



TETRAONID^ (the Grouse). 



157. Canace obscura (Say). Dusky Grouse. 



A rather common inhabitant of the White Mountains, Arizona. 

 Quite a number were shot in August, and on the 15th Dr. Newberry, jr., 

 saw a female with young, probably a second brood. This locality is 

 much further to the south than the bird was known to range. I think, 

 however, that it will be likely to be found extending in the mountains 

 well down to our southern border. 



PERDICID^E (the Partridges). 



158. LopJiortyx gambelii, Nutt. Gambel's Partridge. 



Met with by Dr. JSTewberry, jr., a few miles south of Santa Fe. It 

 here, however, is not nearly so abundant as to the southward, in 

 Arizona and New Mexico. At Apache, they were quite numerous, 

 living in the river-bottom and feeding upon seeds and insects. Near 

 Mount Turn bull, also, 1 saw many bevies, though, from the apparently 

 waterless condition of the canons where they were found, it was not 

 easy to see how they could exist. In the wilderness, they are very shy 

 and wild, but near settlements they seem to lose their suspicion some- 

 what, and are much more easily approached. They are extremely loath 

 to take wing, and, as they run very swiftly, it is no easy matter to force 

 a bevy to fly, but, when once started, their flight is swift and strong, 

 and usually protracted to a considerable distance. They rarely squat 

 under cover, as the well-known Bob White is wont to do, but usually 

 take the shortest route to the nearest rocky hill, up which they run, 

 and where it is useless to attempt pursuit. From the above character- 

 istics, it will at once be seen that this bird has few qualities to attract 

 the sportsman. 



159. Callipepla squamata, (Vigors.) Scaly Partridge. 



Camp Grant was the only locality where this quail was seen. 

 A single small bevy was met with among the bushes on the dry plain. 

 They appeared remarkably unsuspicious, and were very loath to tgke 

 wing, but, when they did so, flew a long distance, keeping nearly 

 together, and on alighting began to run with remarkable speed, and 

 soon eluded pursuit. 



Description of young. Head above grayish- brown, each feather of 

 crest centrally streaked with white; prevailing color of back ashy- 

 brown ; tertiaries and interscapular region mottled transversely with 

 rufous and black; wing-coverts centrally streaked and tipped with 

 white; throat ashy-white; under parts generally washed with rufous, 



