OCT., 1900.] lilRDS OF THE YUKON REGION. 79 



99. Chordeiles virginianus. Mghthawk. 



From Caribou Crossing,. where I shot two females June 27, until 

 after passing- the mouth of the Tatehun River Jul}^ 24, wc met with 

 nig'hthawks on numerous occasions. I took an adult male at White 

 Horse Rapids Jul}- 11. These birds were very fat, as might l)e expected 

 from the abundance of fl.ying insects. They are slightly darker than 

 vhx/imtanus from the East. 



100. Selasphorus rufus. Rufous Hummingl)ird. 



We saw a rufous hummingbird on 'Eagle Island' at Bocadequadra 

 May 28. At Glacier Osgood saw one June (5, and on June 10 I found 

 a nest with two slightly incubated eggs 3i feet from the ground on 

 the branch of a small conifer near the falls of the river. I secured 

 the female, and also one of two males which I saw the same day in the 

 open country below Glacier. On Lake Bennett we saw one opposite 

 West Arm June 24. Mr. George G. Cantwell has already added 

 both this species and Chordeiles virghilcmus to the Yukon avifauna.^ 



101. Sayornis saya yukonensis. Yukon Phoebe. 

 Sayornix xaya i/uhDn'iinis Bishop, Auk, XVII, 115, April, 1900. 



Osgood took the type specimen of this phoebe on the heights above 

 Glacier June 8, and I saw one on the mountainside at Bennett June 17. 

 We next met the bird about some cliffs below Fort Selkirk fluly 26, and 

 after this saw family parties almost daily. Near Stewart River July 

 31, we saw a pair about their nest on the face of a clitf a few feet 

 above the water. After passing Charlie Creek August 10, we saw 

 no more until we reached Circle, where I killed a young one August 

 19. Full-grown 3'oung were taken July 30. The note is harsh, some- 

 what resembling that of Contopusrichardwni., but louder and shriller. 

 We found the bii'ds only about the cliffs, or the steep, grass-grown 

 banks of the Yukon, a favorite perch being rocks along the shore. 

 Those we met in August seemed to be migrating up the river. 



102. Contopus borealis. Olive-sided Flycatcher. 



At Six-Mile Ri\er 1 took a pair Jul}' ], the female of which had 

 finished laying. A bird which I heard near Bennett June 20, and a 

 large flycatcher which I shot, but coidd not find, at Caribou Crossing 

 June 25, I believe were this species. 



103. Contopus richardsoni saturatus. Alaska Wood Pewee. 

 ContojMS richardsoni cdturatUK Bishop, Auk, XVII, 116, April, 1900. 



Osgood took a wood pewee at Skagway May 30, and I two males at 

 Haines June 2. In the Yukon Valley, from Windv Island, Lake 

 Tagish, where I took a male .June 30, until we passed Little Salmon 

 River July 21, we often heard this bird's ' pee-ah ' coming from the 



iQsprey, III, 25, Oct., 1898. 



