OCT., 1900.] BIRDS OF THE yUKC>N REGION. ^3 



158. Parus hudsonicus evura.' Yukon Chickadee. 



We took the Yukon chickadee at Caribou Crossing June 27, Lake 

 Tagish June 30, Lake Marsh July 5, and Lake Lebarge July 14, and 

 after reaching Thirty-Mile River July 19, found it regularly distrib- 

 uted in families or large flocks all the way to Fort Yukon, 1.5 miles 

 above which I saw a flock August 21. At St. Michael I took a young 

 female in flrst winter plumage September 20. Young able to fly were 

 first taken July 5 and molting birds August 13. Wo took adults in 

 full molt June 27, and one in which the molt was almost completed 

 July 24. 



159. Parus rufescens. Chestnut-backed Chickadee. 



We found a few at Haines and Skagway, and I took one and heard 

 another at Glacier June 5. A female taken at Skagway June 3 had 

 finished laying. 



160. Regulus satrapa olivaceus. Western Golden-crowned Kinglet. 

 Tolera])ly common at Glacier; often heard but seldom seen, and 



diflicult to procure. A female that I took June 10 had the last egg 

 ready for the shell. 



161. Regulus calendula. Ruby-crowned Kinglet. 



I took a male at Log Cabin, and on June 20, between that point 

 and Bennett, heard another singing. Osgood took two young speci- 

 mens, one at Lower Lebarge July 17, and the other 20 miles below 

 Dawson August 4. 



162. Regulus calendula grinnelli."^ Sitka Kinglet. 



At Skagway I heard a Sitka kinglet singing May 31, and at Haines 

 took a male and heard another singing June 1. At Glacier I took a 

 male June 6, and during our stay heard two or three others singing. 

 While the Log Cabin bird is normal calendula^ the Haines and Glacier 

 birds have the more olive back and darker sides of crown of grinnelli. 



163. Myadestes townsendi. Townsend Solitaire. 



On the heights above Bennett 1 took an adult male June 17. On 

 the hot noon of June 26, while seated on the summit of a hill some 

 1,500 feet above Caribou Crossing, I heard the most beautiful bird 

 song that has ever delighted my ear. It seemed to combine the 

 strength of the robin, the joyousness and soaring quality of the bobo- 

 link, and the sweetness and purity of the wood thrush. Starting low 

 and apparently far away, it gained in intensity and volume until it 

 filled the air, and I looked for the singer just above my head. I 

 finally traced the song to a Townsend solitaire that was seated on 



1 Auk, XVII, 118, April, 1900. ^ Auk, XIV, 399, 1897. 



