1909] The 1907 Alexander Alaska Expedition. 221 
August 21 to 27; and at Rodman Bay, August 12 to 20, they 
were common, mostly young birds. Several frequented the vicin- 
ity of inhabited houses, picking up refuse food. At Hooniah 
and Port Frederick, Chichagof Island, in June and July the 
species could not be considered common. At Helm Bay, Sep- 
tember 10 to 17, jays were rare, according to Stephens. 
A series of fifteen skins was brought home by the expedition : 
ten from Admiralty Island (Nos. 407-416), two from Baranof 
Island (Nos. 320, 386), two from Chichagof Island (Nos. 393, 
394), and one from Helm Bay (No. 278). In absence of mate- 
rial from Nootka Sound, Vancouver Island, the type-locality of 
stelleri, I cannot verify the claim that the Cyanocittas from the 
Sitkan District are aberrant. 
Corvus corax principalis Ridgway. Northern Raven. 
Ravens were found to be more or less common along the sea- 
coast everywhere the expedition went. At Windfall Harbor, 
Admiralty Island, Dixon reeords that they often came around 
camp to pick up the bird bodies that had been thrown out. 
‘They took particular delight in aggravating the dog by flying 
along the beach just ahead of him.’’ On the same island ravens 
were common at Mole Harbor and Hawk Inlet. On Baranof 
Island Stephens records them as common at Red Bluff Bay, 
Rodman Bay, and Bear Bay. On Chichagof Island they were 
present in usual numbers at Idaho Inlet and Port Frederick. 
On both shores of Glacier Bay they were not uncommon. Final- 
ly, Stephens noted them at Helm Bay, September 10 to 17. 
The following measurements show the tremendous size 
reached by this race of the raven; all four are from Admiralty 
Island: 
Depth of bill 
No. Sex Date Wing Tail Tarsus Culmen Gonys at base 
20 6 ad. April 21 420 242 66 71.5 36 30 
16 6 ad. April 23 468 263 68 83 39 30 
15 ° ad. April 23 428 255 65 66 32 26.5 
31 2 ad. April 24 400 240 67 67 35 28 
No. 16 is unworn; the others have their wings and tails more 
or less abraded. No. 16 was measured fresh—length 670 mm.; 
spread, 1400 mm.; weight four pounds. 
