CONTENTS. 



Page. 



Letter of transmittal 3 



Prefatory note 7 



Chapter I.— General habits of the Crow 9 



Geographic distribution .' 9 



Migration 9 



Crow roosts , 10 



List of the principal winter roosts . . 12 



Why do Crows roost in communities ? 21 



Deposits at Crow roosts as evidence of character of winter food 21 



Chapter II. — Animal food of the Crow 26 



Methods of investigation 26 



Method of examining stomachs 27 



Relative percentages of animal and vegetable food 29 



Relation of the Crow to manimnls 31 



Rabbits 31 



Mice 31 



Ground squirrels and gophers 35 



Bats, moles, and shrews 35 



Unidentified mammals . . r 36 



Attacks on sheep and swine 36 



Relation of the Crow to other birds 36 



Destructiou of eggs and young poultry 37 



Evidence furnished by stomach examination 40 



Destruction of eggs and young of wild birds ' 41 



Evidence furnished by stomach examination 46 



Relation of the Crow to reptiles, fishes, and invertebrates 48 



Tortoises 48 



Snakes and lizards 49 



Frogs and toads 50 



Newts, efts, or salamanders '. . 51 



Fish 52 



Crustaceans 52 



Mollusks 53 



Chapter III.— Insect food of the Crow 56 



Percentage of insects in Crow stomachs 56 



Report on the insect food of the Crow, by E. A. Schwarz. 57 



Testimony from correspondents respecting the insect food of the Crow 68 



Chapter IV.— Vegetable food of the Crow 72 



Corn „ 73 



Wheat '.. 78 



Oats 78 



Barley 78 



Buckwheat 79 



Mast 79 



5 



