Kansas llNifERSiTy Science Bolletin. 



Vol. IV, No. 19. SEPTEMBER, 1908. H^^L^yiv^^oTq' 



Vol. SIV, No 19. 



NOTES ON SOME NORTHERN ARIZONA BIRDS. 



BY ALEX WETMORE. 

 (Contribution from the Zoological Laboratory, No. 186.) 



FROM February 24 to April 1, 1907, I was stationed at 

 Williams, Ariz., a town of about 1200 inhabitants, on 

 the main line of the Atchison, Topeka & Santa Fe coast 

 lines. The elevation was 6700 feet, and the town itself is in a 

 little hollow on the north slope of Bill Williams Mountain, 

 which rose to an altitude of 10,000 feet. The whole country- 

 was of essentially volcanic origin, as numerous "cinders" 

 (lava) and a few strongly alkaline "crater" lakes testified. 

 At Crater Mountain, two miles northwest, part of the open- 

 ing of an old volcanic cone could be traced. Directly south 

 was a rocky canyon, called by some the Head of the Cataract, 

 which drained the country toward the north and finally, grown 

 deeper, joined the Grand Canyon of the Colorado river, under 

 the more pretentious name of Cataract Canyon. The prevail- 

 ing soil appeared to be a clay, usually of a reddish color, thickly 

 strewn with loose stones, principally of quartzite, near Bill 

 Williams Mountain. 



The mountain itself rose approximately in three huge ter- 

 races, with the summit about eight miles from town. It was 

 covered with snow all during my stay and I climbed only as 

 far as the lower edge of the spruce belt because of this. To 

 the east could be seen Kendricks, San Francisco, and Sit- 

 greaves Mountains, in the order named, forming an impos- 

 ing trio, with the largest in the center. 



The yellow pines (Pinus ponderosa) abounded, with spruce 

 occurring toward the summit of the mountain, while to the 

 north scattered cedars and piiions could be found. The avi- 

 fauna was Canadian, with transition zone species occurring in 

 the piiions and on the open plains. 



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