640 BULLETIN UNITED STATES GEOLOGICAL SUEVEY. 



TEINGA MmUTILLA, Yieill. 



Least Sandpiper. 



Observed a little earlier than the preceding species ; and I should not 

 be surprised if it bred in the immediate vicinity. Not noticed after the 

 middle of August. 



List of specimens. 



TEINGA BAIEDI, Cones. 



Baird's Sandpiper. 



During the fall migration, in the month of August, this is one of the 

 most abundant Sandpipers in Dakota and Montana. I found it in small 

 flocks along the Mouse Eiver, and thence in suitable places to the Eocky 

 Mountains; sometimes by itself, oftener mixing with several allied 

 species. Its habits, during the season at least, do not appear to be 

 peculiar in any respect. I observed it chiefly on the small saline pools 

 of the prairie, generally near water-courses, but sometimes at a distance 

 from any permanent stream. It is a very quiet, gentle bird, which may 

 be approached with ease. 



List of specimens. 



TEINGA MACULATA, Yieill. 



Pectoral Sandpiper. 



Like the last species, this one is common in both Territories during the 

 fall migration. It was first seen the latter part of July, in company 



