42 Proceedings of the 



young unable to fly at Grant, June 22, 1905, ZimiiKr saw 

 several at Imperial July 1 and 2, 1911, and the species was 

 found commonly along the Arickaree from Benkelman to 

 Haigler, July 23 and 24, 1903, by Swenk, and about the 

 little pools of water in the almost dry river bed at Haigler, 

 July 4-11, 1911, by Zimmer. 



6. Coliniis virginianus (Linnaeus) — Bob-white. 



Bob-whites were rather abundant along the Arickaree at 

 Haigler, especially during 1911, when they were found every 

 day by Zimmer from July 4 to 11 in flocks of greater or less 

 size, each flock evidently composed of the members of a 

 single family. When surprised these flocks would scatter in 

 every direction, although the young were barely able to fly. 

 Swenk noted them at the same place June 26, 1905. Zimmer 

 saw Bob-whites between Grant and Imperial July 1, 1911, 

 but Swenk did not note this species when going over the 

 same ground in 1905. Evidently the dry season of 1911 

 favored the increase of this bird. 



7. T ymp ami c hits americanus (Reichenbach) — Prairie Chicken. 



Prairie Chickens were noted by Swenk between Grant and 

 Imperial, June 22, 1905, and at one place along the road the 

 buggy passed within a foot and a half of a hen which was 

 squatting immovably, with all her feathers drawn close, be- 

 tween two clumps of grass. Only when the buggy was 

 stopped and the bird nearly touched would she flush, and 

 when she did so over a dozen downy young scattered through 

 the grass, calling confusedly. Zimmer flushed a Prairie 

 Chicken from a grass-grown hollow near the river at Haig- 

 ler July 9, 1911. 



8. Zenaidnra macroura caroUnensis (Linnaeus) — Mourning 



Dove. 

 Abundant. Noted by both Swenk and Zimmer at Im- 

 perial, June 23, 1905, and July 1-2, 1911, respectively, and 

 from Max to Haigler, July 23, 1903, by Swenk. Zimmer 

 found it abundant at Haigler, July 4-11, 1911, also. 



9. Cathartes aura septentrionalis Wied — Turkey Vulture. 



A Turkey Vulture was noted by Swenk near Haigler, July 

 24, 1903, and on both July 5 and 8. 1911, Zimmer noted a 

 pair of them sailing about overhead at the same place. 



10. Circus hudsonius (Linnaeus) — Marsh Hawk. 



Zimmer saw this species at Imperial on July 1 and 2 and at 



