30 PACIFIC COAST AVIFAUNA No. 14 



breed on Big Lake, Stillwater County (Thomas, MS). The bii-d is common in 

 summer at Flathead Lake (Silloway, 1901a, p. 88) and in Teton County (Saun- 

 ders, 1914a, p. 137), but is not known to breed at either place. 



This species has been repoi-ted from many localities in the state in migration, 

 indicating that it ranges practically throughout the state, t)ut it may be more or 

 less replaced by caUfovhicus west oi' the continental divide. Definite dates of 

 migration are few. These are Teton County, Ai)ril 16, 1912, and Xovembei- 19, 

 1912 (Saunders, 1914a, p. 127) and Helena, April 9, 1911. 



A winter record is that of a bii-d found dead at Jjewistown, December ol, 

 1908 (Silloway. 1908a, p. 11). 



12. Larus franklini Richardson 



FrANKLIxV GuiiT. 

 A large colony was bi-eeding on Big Lake, Stillwater County, in 1917, but 

 was not present in li>18 (Thomas, MS). This ap|)eai's to be the only record oi 

 this species in the state. 



13. Larus Philadelphia (Ord) 



Bonaparte (lii-i/ 

 A rare migrant or erratic visitor in summei". The only recoi'ds are Custer 

 and DaAvson counties, August 12, 1904, and July 31, 1905 (Camei-on. 1907, p. 

 247); Teton County, a flock seen October 31, 1912 (Saunders, 1914a, p. 127) 

 and Flathead Lake, where it is an unconnnon migrant, Stanfor-d having mounted 

 two in past years (Sloanaker, MS). 



14. Xema sabini (J. Sabine) 



Sahine CJum. 

 One shot and twenty-five others seen at Terry, Custer County, S(^ptember 

 23, 1904 (Cameron, 190r)a, p. 7«i). 



15. Sterna caspia Pallas 



Caspian Tern 

 An adult male taken at P.ig Lake, Stillwater County, May 1, 1917. Three 

 others were seen at the same time, and se\'eT'al were seen in the spring oT li)18 

 (Thonuis, MS). 



16. Sterna forsteri Nut tall 



FoHSTER Tern 

 One taken from a flock at Flathead Lake, August 23, 1900 (Silloway, 1901a. 

 p. 38). One killed by Dr. C. R. Thornton at Corvallis, Ravalli County, in the 

 summer of 1909 (Bailey, MS). Thirty seen in <-ai'ly spring about Toluca, Big 

 llor'u County, in 1917, tlie last leaving late in Ai)ril (Thomas, MS). 



17. Sterna hirundo Linnaeus 



Common Tekn 

 Noted as abundant and lu'sting at Lake Powdoin, near .Malta, Phillips 

 Comity, June 28, 1903 (Willett, 1907, p. 105). 



