CONTENTS 



Page 



Range and abundance- 3 



Characteristics 9 



Plumage 9 



Age 9 



Sex ratio 9 



Size and weight 10 



Nests and young 13 



Enemies 18 



Legislation 18 



United States ' 18 



Alaska 19 



Canada 21 



Food 22 



Sources of information 22 



Alaska 22 



United States 24 



Analysis of food 26 



Fish 26 



Alaska 26 



United States 31 



Canada 32 



Wildbh-ds "_ 32 



Alaska 32 



United States 34 



Canada 35 



Mammals 36 



Big game 36 



Small mammals 37 



Domestic animals 38 



Blue fox 38 



Other domestic animals 40 



Poultry 41 



Invertebrates 41 



Carrion 41 



Vegetable matter 44 



Attacking HUMANS 44 



Summary 46 



Literature cited 49 



111 



