1909] The 1907 Alexander Alaska Expedition. 207 
told, young and old, and as near as I could determine there were 
four or five old birds present. Being about ready to leave for 
California, I had turned over my shotgun to our guide who was 
then at another camp, so I lost a chance to bag half the flock. 
Mr. Stephens was nearby, and I secured his gun, but by this 
time they had scattered and hid in the brush; however, after a 
lone search one old bird and two young were secured. They 
would not fly after they were first flushed, but kept dodging 
about on the ground, sheltered by the thick cover; several times 
IT saw them but so near that a shot would have ruined them as 
specimens. I searched the island again the next day but none 
were seen, although I could find white feathers from their winter 
coat, and detect trails through the grass at many points, as if 
the birds had been feeding there. I think there were many more 
on this island, but being hard to flush were not easily found. 
There were several other islands in this group which were not 
visited by our party, and which appeared from what could be 
seen to be even more suited to thei taste than the one men- 
tioned. Nothing further was learned of their habits,’’ 
Lagopus dixoni, new species. Dixon Rock Ptarmigan. 
TypE.—Male adult; No. 371, U. C. M. V. Z.; mountain, 2700 
feet altitude, near Port Frederick, Chichagof Island, Alaska; 
July 30, 1907; collected by Joseph Dixon. 
CHARACTERS.—Resembling Lagopus rupestris nelsoni in cor- 
responding plumage, but much darker; in extreme blackness of 
coloration nearly like Lagopus evermanni, but feathers of chest 
and back more or less finely vermieculated with hazel. 
DEsScRIPTION OF TypE.—General color of all feathers not 
white, sooty bistre; throat region about equally barred with this 
color and white; and in a less amount the feathers of the lower 
throat, sides of neck and nasal region tipped with white; whole 
top of head sooty, minutely and sparsely barred with hazel; fore 
chest barred with tawny, broadest toward the fore neck, the bars 
becoming narrower posteriorly over the hind chest until obso- 
lete; in the hinder part of the pectoral region the feathers show 
narrow white tips, and progressively backwards these tips widen 
