R6X 

 rds 



Division of Thirds 



THE GEOLOGICAL AND NATURAL HISTORY SURVEY 

 OF MINNESOTA. 



ZOOLOGICAL DIVISION. 



THE WINTER BIRD-LIFE 

 OF MINNESOTA 



BEING AN ANNOTATED LIST OF BIRDS THAT HAVE 

 BEEN FOUND WITHIN THE STATE OF MINNE- 

 SOTA DURING THE WINTER MONTHS. 



BY 



THOMAS S. ROBERTS, M. D. 



ORNITHOLOGIST TO THE DEPARTMENT OF ANIMAL BIOLOGY, 

 UNIVERSITY OF MINNESOTA AND ASSOCIATE DIRECTOR 

 OF THE ZOOLOGICAL DIVISION OF THE GEOL- 

 OGICAL AND NATURAL HISTORY 

 SURVEY OF MINNESOTA. 



OCCASIONAL PAPERS: NUMBER 1. 



Z^A-A-SS 



MINNEAPOLIS, MINNESOTA. 

 FEBRUARY 1916. 



