-38- 



11. RED-THROATED LOON, Urinator lumme (Gunn.) 



A female of this species was taken at Mud Lake, near Flat- 

 head, on July 15, 1901. It was alone, though several American 

 mergansers were near it. 



40. WESTERN GULL, Larus occidentalis Aud. 



A common visitor at the northern end of. Flathead Lake. A 

 specimen was taken on Aug. 29, at the sand-bar near the mouth 

 of Flathead River, associating with Larus delawarensis and 

 Sterna forsteri. 



54. RING-BILLED GULL, Larus delawarensis Ord. 



A regular visitor to the upper end of Flathead Lake, appear- 

 ing in pairs and flocks of eight to twenty, generally after bois- 

 terous days on the lake. It manifests unusual curiosity, 

 as a boat or launch will attract it to hover about, often to its 

 harm. Specimens were frequently taken, Aug. 23, 24, and fol- 

 lowing dates. 



69. FORSTER'S TERN, Sterna forsteri Nutt. 



Irregular visitor to the northern end of Flathead Lake. On 

 Aug. 23, a specimen was taken near the mouth of Swan River, 

 flora a small flock that flitted capriciously over the water. 



129. AMERICAN MERGANSER, Merganser americanus 



(Cass.) 



On Aug. 23, a flock of six or eight mergansers appeared in 

 the bay immediately west of the station, near the boat landing. 

 A specimen was taken from this flock on Aug. 24, and there- 

 after this Ashing duck was regularly noted. When one of the 

 flock succeeded in capturing a fish, the others would pursue the 

 successful fisher, and a playful scuffle for possession of the prey 

 would ensue, in which the victim was generally dismembered 

 by the harsh teeth ct' the captors. 



131. HOODED MERGANSER, Lophodytes cucullatus (Linn.) 

 On July 15, 1901, a female hooded merganser was taken 



