CONTENTS. 



TiTLEPAGE . 



Preface 



Contents . 



Glossary . 



Topography of a Bird 



Introduction 



How to Measure a Bird 



Index to Key to Families. Water Birds 



Group 1. Toes, four, with lobate webs, or webs on sides of toes . 



Group 2. Toes, four; frout toes palmate (full webbed) ; hind toe not con 



nected with front ones by web 

 Group 3. Toes, four, full webbed; hind toe connected with frout ones by 



web 



Group 4. Toes, four, not full webbed; small webs between toes at base, or 

 toes entirely without web .... 



Section 1. Hind toe, raised above level of front toes 

 Section 2. Hind toe, ou level with front toes 

 Group 5. Toes, three, full webbed ; no hind toe 



Group 6. Toes, three ; a small web between toes, or entirely without w 

 Key to the Species of Water Birds of Eastern North Amekica 

 Family Podicipid^:. Grep.es 



Family Gaviid.f,. Loons .... 



Family Alcid^:. Auks, Puffins, and Mukres 



Family Stercorariid.k. Skuas and .T.K(;ei;s 



Family Larid.I':. Gulls and Terns . 



Subfamily Larin^e. Gulls 



Subfamily STERNINy^:. Terns 



Family Ruynchopid.e. Skimmers 



Family Diomedeid.k. Albatrosses 



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