1924] Swarth: Birds arid Mammals of the Skeena River Region 335 



Accipiter velox (Wilson). Sharp-shiimed Hawk 



Several seen near Hazelton, migrating, May 27. As single birds 

 were encountered at intervals during the summer in Kispiox Valley 

 and on Nine-mile Mountain, it seems likely that a few pairs breed in 

 the region. The last week in August, with the beginning of the migra- 

 tion, sharp-shinned hawks became fairly abundant. That is, one or two 

 birds were seen daily, some days four or five might be encountered. 

 Three specimens collected: an adult male. May 31 (no. 42040), an 

 adult female, just beginning the annual molt, July 13 (no. 42042), 

 and an immature male, August 19 (no. 42041). 



Astur atricapillus atricapillus (Wilson). Eastern Goshawk 



During the third week in August migrating goshawks appeared, 

 and from then on, during September, they were abundant. Scarcely 

 a day passed without at least one being seen, and frequently seven or 

 eight would be noted within a few hours. The species is usually 

 solitary but it was not imcommon here to find two together. Mostly 

 they were young birds, and as a rule absurdly unsuspicious. Two of 

 the three goshawks collected during August (nos. 42045, 42046), all 

 in immature plumage, are evidently of the subspecies atricapillus, and 

 I believe that nearly all seen at that time were the same. They 

 appeared to constitute a migratory 'wave' from some more northern 

 region. 



Astur atricapillus striatulus Ridgway. Western Goshawk 



A female goshawk (no. 42043) of this subspecies collected at 

 Hazelton, on May 30 is, save for a few scattered feathers on the tibiae, 

 in immature plumage throughout. A male bird (no. 42044) taken 

 July 16 is in the midst of the molt from the immature to adult 

 plumage. An immature male (no. 42046) was collected in Kispiox 

 Valley, August 29. The last mentioned appeared at the same time 

 as other migrating hawks. The other two, taken in May and July, 

 respectively, may indicate the breeding of this subspecies in the region. 

 They could not be positively recognized as breeding individuals, how- 

 ever. Eemains of flicker and ruffed grouse were found in the stomach 

 of no. 42044 ; ruffed grouse in that of no. 42046. 



