114 WILD AXIMALS OF GLACIER NATIONAL PARK. 



loons! Crossley Lake, separated from Glenn Lake by a terminal 

 moraine, may afford additional feeding grounds for the Glenn Lake 

 loons, or shelter a pair of its own. In any case, on another day 

 when looking out over its broad surface toward the great glacial 

 amphitheater above, I saw two of the loons sitting unafraid out on 

 the middle of the lake. As I watched they rose and flapped their 

 black wings, dived, and came up, lying with super-duck length on the 

 water and flashing their white underparts. Then, perhaps becom- 

 ing conscious of observation, they made their way over the beautiful 

 green and purple deeps of the lake toward the sheer wall of Gable 

 Mountain, all too soon disappearing from view. 



Order LONGIPENNES: Long-winged Swimmers. 

 Family LARID^: Gulls and Terns. 



California Gull: Lams calif omicus. — Mr. F. F. Liebig of Kalis- 

 pell has a mounted specimen of one of these large gulls in the 

 mottled immature plumage which was taken at Lake McDonald, 

 and he has seen two others on the lake. 



RiNG-iuixED Gull: Larus delawarensis. — The ring-billed gull, 

 with white head and underparts, and yellowish bill with a black 

 band near the tip, has been identified just outside the park by Dr. 

 Grinnell, who saw it several times on the Lower St. Mary Lake in 

 September and October, 1887, resting on sand bars in company with 

 terns-; and Mr. Stevenson writes me that "at least one variety of 

 gull is a summer visitor of the park, while they are common on the 

 plains east of the park, noticeably at Duck Lake and the slaughter- 

 house located on a pond at Browning." He says that he has also 

 noted them on Sherburne Lake in midsunnner. INIr. Gibb states that 

 gulls nest at St. Mary Lake and Lake ISIcDonald. along the Xorth 

 Fork of the Flathead, and on the Belly River, and adds that he has 

 seen them in summer on Lake McDermott. On April 21 and 22, 

 1918, Mr. Bailey saw a few gulls, apparently of this species, on Lake 

 McDonald. 



Bonaparte Gull: Larus Philadelphia. — The smaller Bonaparte 

 gull, the summer adults of which have both bill and head black, and 

 the winter adults and young of which have a conspicuous dusky spot 

 on the ear coverts, is reported from the park by the two taxidermists, 

 Mr. Bryant and Mr. Stanford, and Mi-. Bryant thinks he has seen 

 it on Lake McDonald. Mr. F. F. Liebig has a mounted specimen 

 taken on St. Mary LaJce when the park was a National Forest. 



FoRSTER Tern: Sterna forsteri {?). — Black-crowned and forked 

 tailed terns presumably of this species Avere seen flying over the 

 northern Waterton Lake in August, and they probably cross the 



