The Birds 



OF 



EASTERN NORTH AMERICA 



WATER BIRDS 



PART I 



KEY TO THE FAMILIES AND SPECIES 



BY 



CHARLES B. CORY 



Curator of Dtpartmani of Ornithology in the Field Columbian Museum 



SF^BOIKL. EDITION 



PKINTKK VX»\i TMV. 



FIELD COLUMBIAN MUSEUM 



CHICAGO, EX. 



f 



