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prefer higher stations as its lookout, consequently seeking its 

 food in a higher story of the forest than its eastern congener, 

 and building its nest in sites higher in the trees. It generally 

 chooses a station in a tall tree on a bare limb above the middle 

 point, and there utters its sharp, querulous call, making oc- 

 casional sallies into the air to capture passing insects. Trees 

 on bushy hillsides are its most favored resorts. 



466. TRAILL'S FLYCATCHER, Empidonax traillii (Aud.) 



Common in the woods and bushy localities during August. 

 It was not observed during our first visit to the Station. This 

 flycatcher frequents a lower story than does the western wood 

 pewee, being seldom observed higher than the middle of med- 

 ium-sized trees, and usually preferring the clumps of maple and 

 willow of fire-swept districts. It was most frequently noted 

 in the woods between Swan River and Flathead River. Com- 

 mon near McDonald Lake. 



469. WRIGHT'S FLYCATCHER, Empidonax wrightii 



Baird. 



No specimens of this little flycatcher were taken at Sin- 

 yale-a-min Lake, but it appeared to be common on the hill- 

 sides south of the lake, where there was an extended growth 

 of bushes and younger trees. There it could doubtless be 

 found nesting in the breeding season, though no nests of the 

 season were noted. In fact, it seemed that few birds had nested 

 near this lake, judging by the absence of nests for the year. 

 I am of the opinion that the lake is used by the birds more as 

 a place for occasional resort than as a breeding ground. 



Wright's flycatcher was found nesting in bushy localities 

 near tbe Station, generally inhabiting the clumps of maplt? 

 sprouts in the edges of the heavier woods or on ridges where 

 former fires had prostrated the taller growth and given place 

 to bushes. Four nests were found during the June collecting, 

 but this flycatcher was not observed during our visit to the 

 same localities in August. 



474 c. DESERT HORNED LARK, Otocoris alpestris arenicola 



Hensh. 



This homed lark was abundant on the prairie regions of the 

 Reservation, and is doubtless the prevailing form in summer. 



