CONTENTS 



Page 



Preface iii 



Introduction I 



Methods 2 



General habits of hornbills 4 



Nest construction 8 



Activities of nesting pairs 17 



Eggs, young, and nest openings 20 



Territory, and relations of hornbills with one another 24 



Relations with other birds 29 



Food 29 



Some anatomical features in relation to function 32 



Discussion of factors controlling hornbill populations 34 



Comparative studies of other hornbills 35 



Discussion of hornbill biology 40 



Summary 44 



References 45 



