88 University of California Publications in Zoology. [Vol. 7 



Junco oreganus oreganus (Townsend). Oregon Junco. 



Though we found the Oregon junco quite generally distrib- 

 uted over the region traversed, it was not common anywhere 

 until late in the summer, when the broods of young began to 

 appear about the woods. The first arrival was noted on 

 Kupreanof Island, on April 19, a single bird, and on the follow- 

 ing day a small flock was seen at the same place. A few scattered 

 individuals were seen on Kuiu, Prince of Wales, Warren, Heceta, 

 and Dall islands. At Portage Cove, Revillagigedo Island, juncos 

 were fairly common and evidently breeding in the brush border- 

 ing the meadows. At Etolin Island, July 5 to 12, the first 

 broods of young were seen flying about, and at Bradfield Canal, 

 Zarembo Island, and ]\Iitkof Island they became comparatively 

 abundant. At Thomas Bay, August 13 to 23, juncos were 

 common, feeding in the open, grassy meadows, or on the ground 

 in the shelter of the alder thickets. Old and young were in the 

 midst of the molt at this time, and were all very ragged in 

 appearance. At Port Snettisham a few juncos were seen, but 

 they were not abundant. On the Taku River in September, 

 small flocks were seen daily. Young birds taken during the 

 first week in September had nearly finished the post-juvenal 

 molt, having but a few spotted feathers remaining, while an 

 adult female shot on September 22 (no. 9622) has also practically 

 completed the change. This adult differs from young females 

 in first winter plumage in having the black of the head sharply 

 defined against the brown back, while in the latter there is no 

 line of demarcation, the brown extending over most of the head. 



Twenty-six specimens were secured from the following 

 localities: Kuiu Island, one (no. 9595), Warren Island, one (no. 

 9596), Heceta Island, one (9597), Rocky Bay, Dall Island, two 

 (nos. 9598, 9599), Portage Cove, Revillagigedo Island, one (no. 

 9600), Etolin Island, one (no. 9601), Bradfield Canal, one adult 

 (no. 9605) and three juvenals (nos. 9602-960-1), Zarembo Island 

 two juvenals (nos. 9606, 9607), IMitkof Island, one juvenal (no. 

 9608), Thomas Bay, two adults (nos. 9609, 9610), Port Snetti- 

 sham, one adult (no. 9611), Taku River, one adult (no. 9622) 

 and eight immatures (nos. 9612-9621). 



