138 EXPLORATIONS AND SURVEYS WEST OF 100TH MERIDIAN. 



146. Pandion haliaetus (L.), var. carolinensis, Ginel. Fish-Hawk. 



An occasional Fish-Hawk was seen busily employed in its vocation on 

 the small streams. On the Gila, however, which is plentifully stocked 

 with fish, it seems to find a congenial home, and is quite abundant 

 along its banks. 



147. Circus cyaneus (L.), var. liudsonius, L. Marsh-Hawk. 



A common hawk in Arizona and New Mexico, but here, as elsewhere, 

 confined rather exclusively to the vicinity of marshes and water-courses. 

 I noticed many on the creeks about Camp Grant, where they were 

 remarkably tame and unsuspicious. 



148. Nisusfuscus, (Ginel.) Sharp-shinned Hawk. 



Quite common, both in Arizona and New Mexico. Preys much upon 

 small birds; the doves (Zenaidura carolinensis) suffering much from its 

 attacks. 



149. Nisus cooperi, (Bon.) Cooper's Hawk. 



An abundant species throughout Eastern Arizona and Western New 

 Mexico. While sitting in my tent one day at Apache, I noticed one of 

 these hawks making repeated attacks upon a raven. It would force the 

 raven to take refuge in a tree, and then fly to some neighboring perch 

 and take its stand. The moment the persecuted raven essayed to move 

 away, the hawk flew out and swooping down upon it struck it and 

 again forced it to cover. This was repeated several times, and appar- 

 ently for no other reason than for the amusement of the hawk, though, 

 judging from the discontented squawks and cries which the abused 

 raven gave vent to, the pleasure was by no means mutual. So engrossed 

 was the falcon in this sport that it allowed me unnoticed to walk up 

 within a few feet, when my gun settled the dispute. 



Bill bluish-black; legs and feet yellow. 



