1911] Swarth: Alaska Expedition of 1909. 101 



Oporornis tolmiei (Townsend). Tolmie Warbler. 



Although this species has not been previously reported from 

 Alaska, we found it at nearly all the mainland points visited, as 

 far north as Port Snettisham. At Boca de Quadra, where it was 

 first seen, my attention was drawn to the birds by the singing of 

 the males, usually in the willow thickets bordering the meadows. 

 Several were seen or heard, and an adult male and female 

 secured. At this time (June 11 to 14) they were apparently 

 preparing to breed. On the Chickamin River, later in June, the 

 species was fairly common in similar situations, and was undoubt- 

 edly breeding. The males were heard singing continually, but 

 they were exceedingly shy, and hard to catch sight of, as they 

 clung to the dense thickets and tangled shrubbery. At Bradfleld 

 Canal, the middle of July, several were seen, while at Port Snet- 

 tisham, August 25 to September 1, four were secured and several 

 others noted. At this latter place all that were seen were in- 

 thick vegetation about the edges of a dense willow swamp, and 

 the birds were very quiet and unobtrusive. They were probably 

 fairly numerous at this point, though comparatively few were 

 secured. The species was not observed at any island locality. 



Nine specimens were secured: two adults from Boca de 

 Quadra (nos. 9463, 9464), two adults from the Chickamin River 

 (nos. 9465, 9466), an adult female from Bradfleld Canal (no. 

 9467), four immatures from Port Snettisham (nos. 9468-9471). 



I am unable to appreciate any points of difference whatever 

 between these specimens and" others from more southern locali- 

 ties, including a series of breeding birds from Nevada. 



Geothlypis trichas occidentalis Brewster. 



Western Tellowthroat. 



One of the most interesting results of the season's work was 

 the discovery of the western yellowthroat at two points on the 

 coast of southeastern Alaska, at one of which it was most assur- 

 edly breeding. On the Chickamin River it was fairly common in 

 the meadows of tall grass. All that were seen were in pairs, 

 while of the two adult females secured, one shot on June 20 (no. 



