amrrican j^aturr ^rhrs 



Group II. The Funclious of Nature 



THE BIRD 



ITS FORM AND FUNCTION 



BY 



CV WILLIAM BEEBE 



Curator of Ornithology of tfie New York Zooloaical Park and Life Member of the 



Aetc York Zoological Society ; Member of tha American Ornithologists' 



Union and Fellow of the New York Academy of Sciences 



Author of "Two Bird- Lovers in Mexico" 



WITH OVER THREE HUNDRED AND SEVENTY ILLUSTRATIONS 



CHIEFLY PHOTOGRAPHED FROM LIFE 



BY THE AUTHOR 



j 7 (p s- ^ . 



2, 



NEW YORK 



HENRY HOLT AND COMPANY 



1906 



