Allen.] 66 [June 3, 



96. Pedioecetes phasianellus var. columbianus Coues. 

 Sharp-tailed Grouse. 



Occasional in the vicinity of all the larger streams from the Mis- 

 souri to the Musselshell, but nowhere very numerous. Young 

 hatched the last week in June. 



CHARADRinm 



97. JEgialitis vociferus Cass. Killdee Plover. 



Single pairs met with at intervals throughout our journey. Far 

 less numerous than on the plains of Kansas, Colorado, and Southern 

 Wyoming. Sometimes none were seen for several days. 



98. JEgialitis montanus Cass. Mountain Plover. 



Met with at widely distant intervals. Seen more frequently on the 

 plains bordering the Yellowstone and Musselshell than elsewhere. 

 Two or three small flocks were met with in September, but generally 

 . they were seen only in single pairs at intervals of several days. 



RECURVIROSTRIM. 



99. Kecurvirostra americana Gmel. Avoset. 



Three or four pairs were seen about a rain-water pool on the divide 

 between the Yellowstone and Musselshell (near Camp 46), August 

 18th — the only time the species was met with on the whole journey. 



scoLOPAcnm 



100. Tringa ? Bairdii Coues. Baird's Sandpiper. 



A few individuals were seen along the Musselshell, which were 

 supposed to be of this species, but no specimens were taken. It was 

 also seen a few times in September along the Yellowstone. 



101. Totanus solitarius Wils. Solitary Sandpiper. 

 Observed frequently along the Musselshell and Yellowstone Rivers. 



First seen July 28th, on a little creek not far from Camp Thorne. 



102. Totanus melanoleuca Gm. Greater Tattler. 

 Occasional along the Musselshell, and seen a few times on the Yel- 

 lowstone and Heart Rivers in September. 



103. Tringoides macularius Gray. Spotted Sandpiper. 

 Not common. Seen at unfrequent intervals from the Missouri to 



the Musselshell 



