46 University of California Publications in Zoology, ['^ou 7 



Anser albifrons gambeli Hartlaub. American White-fronted 



Goose. 

 At Kupreanof Island on April 21, and on Kuiu from April 

 25 to May 6, flocks of white-fronted geese were seen flying north- 

 ward, their different call-note serving to distinguish them from 

 the hordes of geese of the canadensis group which were passing 

 over at the same time. They were all flying high, and none 

 were seen to alight anywhere. 



Branta canadensis occidentalis (Baird). White-cheeked Goose. 



An abundant species throughout the summer at practically 

 every place we visited that was at all suited to their wants. At 

 Kupreanof and Kuiu islands, April 11 to May 6, flocks of 

 migrating geese passed overhead daily, and the majority of them 

 appeared to be of this group, while numbers were seen feeding 

 at various places about the islands. None were observed at either 

 Coronation or Warren Island, but all along the west coast 

 of Prince of Wales and Dall islands, in May, they were quite 

 abundant, and nearly all in pairs. One pair was seen on Duke 

 Island, June 7 to 9, and the birds were abundant at the head 

 of Boca de Quadra, June 9 to 14, where they were still gathered 

 in large flocks. A brood of young ones seen by Hasselborg on 

 the Chickamin Eiver, June 21, were about the size of mallards. 

 A few were observed on Revillagigedo Island at the end of 

 June, but the species was ]?ot again met with in numbers until 

 Thomas Bay was reached, August 13, probably because the 

 places visited in the meanwhile were but poorly adapted to the 

 wants of the species. Last seen on the Taku, where but few 

 were observed in September. 



A single specimen was preserved (no. 9916) an adult female 

 shot at Thomas Bay on August 14. This bird is in the midst of 

 the molt, with many of the tail feathers missing and with many 

 pin-feathers, but it is essentially like the birds secured on 

 Admiralty Island by the expedition of 1907. The tone of colora- 

 ation of the underparts is somewhat lighter, due to the fact that 

 it is more thinly feathered and the slaty bases of the feathers 

 more exposed, while in full plumaged birds it is the dark tips 



