1910] Grinnell—Birds: Alaska Expedition, 1908. 383 
It is pertinent here to remark that the Kowak Valley series 
of spruce grouse averages grayer (bluer) in both sexes than 
examples from the Yukon Valley. The former are therefore 
most extremely divergent from the dark southern coast form here 
deseribed. 
The only young grouse obtained (no. 1178, from Northeast 
Bay, Hinchinbrook Island, June 27, collected by E. Heller) is 
in natal down and I judge to be rustier, more fulvous, in tone 
of coloration than the downy young of osgoodi described by 
Bishop (1. ¢., p. 115). 
Spruce grouse were not abundant in the Prince William 
Sound region, but appeared to be generally distributed. Two 
shot on Hawkins Island were both in heavy timber near the 
beach. Their crops were filled with the fresh green leaf-buds 
of spruce. On Hinchinbrook Island a male was shot on the 
mountain side near timber-line. The example secured by Heller 
on Hoodoo Island was flushed from a rank growth of salmon- 
berry bushes; its crop contained berries, some fern fronds, and 
a few seed pods of the devils-club. Grouse sign was noted on 
Chenega Island; and, as previously noted, skins were secured at 
Knight Island and at the head of Port Nell Juan. 
Lagopus rupestris kelloggae, new subspecies. 
Montague Rock Ptarmigan. 
Typp.— adult; no. 1169, Univ. Calif. Mus. Vert. Zool.; 
mountain, 1600 feet altitude, at Zaikof Bay, Montague Island, 
Prince William Sound, Alaska; July 7, 1908; collected by J. 
Dixon. 
CHARACTERS.—Similar to Lagopus rupestris rupestris, of the 
interior of Alaska (mountains near Eagle), in comparable stage 
of plumage, but coloration darker: black markings more ex- 
tended; brownish shades deeper toned; white tippings reduced 
and suffused with ochraceous; top of head nearly solid black. 
Remarks.—Five ptarmigan were obtained by the expedition. 
All are adult males in partially acquired summer plumage. The 
type, and only example secured on Montague Island, is furthest 
alone with the pre-aestival molt. Two specimens were obtained 
