iamrrican j^aturr ©cries 



Group IIJ The Functions of Nature 



THE BIRD 



ITS FORM AND FUNCTION 



C. WILLIAM BEEBE 



Curator of Ornithology of the New York Zoological Park and Life Member of the 



New York Zoological Society ; Member of the American Ornithologists' 



Union and Fellow of the New York Academy of l^ciences 



Author of " Two Bird- Lovers in Mexico" 



WITH OVER THREE HUNDRED AND SEVENTY ILLUSTRATIONS 



CHIEFLY PHOTOGRAPHED FROM LIFE 



BY THE AUTHOR 



NEW YORK 



HENRY HOLT AND COMPANY 

 1906 



