1921 BIRDS OF MONTANA 171 



This species is so early in its arrival in spring, that it seems as if it would 

 some day he found to winter in the state, at least ou the west side of the conti- 

 nental divide. There are no winter records, however, at iirescnt. I was told of 

 a !)lueliird winterinu; near C'hoteau in the winter of lini-ll'. but the information 

 i-cached me second-hand, and 1 was uiuil:)le to find out i'l'om whom it came or to 

 verify it. 



The following' two species have been addeil to the state list since the pre- 

 ceding- matter was put in type. 



;^31. Tringa canutus Limuieus 



Knot 



The inunnnified body of a bird of this species was found on Woody Island 

 in Lake iiowdoiu, October 4, IDl.') (Wetmore, IfrJO, j). 4.")1). 



:i:\'2. Falco islandus I'.riiiinich 



White Gyrfalcon 

 A bird of this si)eci(>s was taken on Shonkin Creek, near Shoukin, Xo\'eui- 

 ber 18, 1917, by G. 1>. Daniels. It is now mounted and in the collectiim of Mr. 

 J. II. Bowles (Rathbun, ]!!2(), p. r.1'2}. 



RECENTLY EXTIXCT SPECIES 

 Ectopistes migratorius (Linnaeus) 



l'.\SSKN(iEH I'lCKON 



Foi'inei'ly an abundant mij;'rant, evidently throughout the state, and prob- 

 ably lu'eeding in the northern mountains. Records of this si)ecies are as follows: 

 Above the mouth of the Vcllowstone, August S, 1856 (Baird, 1858. p. (iOO). Seen 

 almost every day along the Upper Missouri, and across the divide, westward as 

 far as Spokane Falls. Fed on service berries in Ilell-Gate Canyon (Cooper, 

 lSfi9a, p. 80). Small flocks seen high up the Yellowstone (Ilayden, 1862, p. 

 ]72l. A young bird secured at Chief Mountain Lake, August 23, 1874 (Coues, 

 lS74b, p. 628). Seen on the Missouri in July (Grinnell, 1876, p. 650). These 

 last records in 1873-74 are the latest from the state. 



The fact that this species was once aliundant in Montana, and is now un- 

 known there, as elsewhere, seems to me strong evidence that its extinction was 

 not due to man's unaided agency. At the time it disappeared in Montana the 

 state was very thinly settled, and the human population there could not have 

 been the cause of any appreciable lessening of its numbers. The Trumpeter 

 Swan, the Sandhill Crane, and the Long-billed Curlew, while exterminated in 

 many parts of their former range, still occur in Montana. Their extinction in 

 many places is obviousl.y due to man, and for the .same reasons, the extinction 

 of this si)ecies is not. 



