

apemofris of tl^e il^wttall €)t:ntt]^ological Club. 



No. I. 



BIRD MIGRATION. 



By WILLIi.M BREWSTER. 



CONTRIBUTED BY COURTESY OF THE AMERICAN ORNITHOLOGISTS' UNION'S COMMITTEE ON THE 

 MIGRATION AND GEOGRAPHICAL DISTRIBUTION OF NORTH AMERICAN BIRDS. 



Part I.— OBSERVATIONS ON NOCTURNAL BIRD FLIGHTS AT 

 THE LIGHT-HOUSE AT POINT LEPREAUX, BAY OF 

 FUNDY, NEW BRUNSWICK. 



Part II.— FACTS AND THEORIES RESPECTING THE GENERAL 

 SUBJECT OF BIRD MIGRATION. 



CAMBRIDGE, MASS. 



PUBLISHED BY THE CLUB. 



MARCH, i8S6. 



