116 University of California Publications in Zoology [^oi'- 30 



from the ground. Other nests were found, similarly placed, low down 

 in dead timber. The last flicker was seen September 5. 



Two specimens were collected (nos. 44749-44750), a female on 

 August 17, a male on August 22. 



Chordeiles virginianus virginianus (Gmelin). Eastern Nighthawk 



The first nighthawk arrived at Atlin on the evening of June 12; 

 the species was fairly common thereafter in the lowlands. During 

 the last two weeks in August the southward migration was under way, 

 and every evening the birds could be seen passing by, all going in 

 the same direction. Last seen on the evening of September 6. Two 

 specimens collected (nos. 44751-44752), both females, taken on 

 August 12 and 20, respectively. 



Selasphorus rufus (Gmelin). Rufous Hummingbird 



Seen on only three occasions, on^June 11, June 13, and July 12, all 

 within a few miles of the town of Atlin. One of the three was an adult 

 male, hence easily recognizable, the others were inferentially of the 

 same species. 



Sayornis sayus yukonensis Bishop. Northern Say Phoebe 



Present at Carcross upon our arrival, May 22. Breeds in the town 

 of Atlin, and scattered pairs occur elsewhere, usually about abandoned 

 buildings. The southward migration of this species was under way 

 after the middle of August. On August 24, near the summit of a 

 high mountain, a Say phoebe, first observed perched upon a rocky 

 pinnacle, was seen starting southward, ascending higher as the moun- 

 tain was left behind, the beginning of what was to be, apparently, 

 a long flight. The last Say phoebe was seen at Lake Teslin, 

 September 10. 



I collected three adults (nos. 44753-44755) and Brooks collected 

 others, and these, together with additional northern specimens in this 

 museum, bear out the validity of the subspecies yukonensis (Bishop, 

 1900, p. 115). The northern bird has a slightly smaller bill than the 

 southern race; otherwise, differences of measurements between the 

 two are of slight moment. The color differences, however, are readily 

 apparent, both in the juvenal and adult plumages, yukonensis being 

 clearer gray where sayus is brownish or rusty, as described by Bishop 

 {loc. cit.). 



