1922] Swarth: Birds and Mammals of the Stikine Region 209 



on the summit during the day. This same man had spent several win- 

 ters trapping on the Iskut River some miles above the junction of the 

 latter with the Stikine, and he told us that at times ptarmigan were 

 plentiful there during the winter months. He described them as of 

 two species, one smaller and entirely white (obviously leucurus), the 

 other larger and with black feathers in the tail. The latter was evi- 

 dently either rupestris or lagopus; both species may occur there. 



The three young taken on July 11 are in the natal down through- 

 out, save that the wing feathers had grown out to a slight extent. 

 They could fly a little, skimming down hill a few inches above the 

 ground. 



The crop contents of these birds (determined at the United States 

 Biological Survey) are as follows: 



No. 39749, adult female. Percentage of vegetable matter, 100. Con- 

 tents of crop, fragments of mosses, a few leaves of Oeraniiim, sp., 24 

 flowers of Dryas octopeiala (25 per cent), many leaves, stems, etc., of 

 Salix, sp. (75 per cent). 



No. 39750, young. Percentage of animal matter, 30 ; of vegetable, 

 70. Contents of crop : IScymnus, sp., at least 1 Sciara, sp., about 50 

 plant lice (including Psylla, sp.) (30 per cent) ; vegetable matter, in- 

 cluding Myrica gale., unjdentifled leaf buds (probably Salix, sp.), and 

 Ranunculus, sp. (70 per cent). 



- No. 39751, young. Percentage of vegetable matter, 100. Contents 

 of crop : fragments of several leaf buds, probably Salix, sp. 



No. 39752, young. Percentage of animal matter, 60 ; of vegetable, 

 40. Contents of crop : 12 plant lice and several unidentified leaf buds, 

 probably Salix, sp. 



Zenaidura macroura carolinensis (Linnaeus). Eastern Mourning 



Dove 



On June 17 a mourning dove was seen near Telegraph Creek. Mr. 

 "W. H. Dodd, who has been government agent at that point for some 

 years past, informed me that the species occurs in the fall with a fair 

 degree of regularity. That is, one or two of the birds might be ex- 

 pected to appear each year. 



On September 3 an adult female (no. 39753) was collected on 

 Sergief Island, at the mouth of the Stikine Eiver. Mr. Fred H. Gray, 

 of Wrangell, a deputy of the Bureau of Fisheries, and a man who has 

 observed and collected birds for many years, informed me that he had 



