LIST OF PLATES Page 



1. Bills of Large Loons 73 



2. Bills of Small Loons and Grebes .". .' 74 



3. Bills of Albatrosses 75 



4. Bills of Albatrosses, Frigatebirds and Tropicbirds 76 



5. Bills of Fulmarine Petrels; and A Top View Comparison 



of Representative Petrel Bills 77 



6. Bi lls of Shearwaters 78 



7. Bills of Storm Petrels 79 



8. Bills of Boobies 80 



9. Bills of Adult Cormorants 81 



10. Bills of Juvenile Cormorants 82 



11. Bills of Swans 83 



1 2a . Bills of Geese 84 



12b. Bills of Geese 85 



13a. Bills of Dabbling Ducks - top view 86 



13b. Bills of Dabbling Ducks - side view 87 



14a. Bills of Dabbling and Bay Ducks - top view 88 



14b. Bills of Dabbling and Bay Ducks - side view 89 



15a. Bills of Bay Ducks and Oldsquaws - top view 90 



15b. Bills of Bay Ducks and Oldsquaws - side view 91 



16. Bills of Scoters - side view 92 



17. Bills of Eiders - side view 93 



18. Bills of Scoters and Eiders - top view 94 



19. Bills of Mergansers and Coots 95 



20. Bills of Plovers 96 



21. Bills of Oystercatchers, Phalaropes, Turnstones 



and Surfbi rds 97 



22. Bills of Medium-sized Sandpipers 98 



23. Bills of Large Sandpipers 99 



24 . Bills of Smal 1 Sandpi pers 1 00 



25. Bills of Skuas and Jaegers 101 



26a. Bills of Large Gulls 102 



26b . Bills of Large Gul 1 s 103 



27. Bills of Medium-sized Gulls 104 



28. Bills of Small Gulls 105 



29. Bills of Large Terns and Skimmers 106 



30. Bills of Small Terns 107 



31. Bills of Large Auks 108 



32. Bills of Puffins 109 



33. Bills of Murrelets and Auklets I 10 



34. A large and long webbed foot, in this case, 



an Arctic Loon Ill 



35. Webbed feet; three toes webbed, fourth toe minute: I 12 



1 . South Polar Skua 



2. Northern Fulmar 



3. Western Gull 



36. Webbed feet: 113 



1. & 2. Three toes webbed, fourth toe absent 

 (alcid, in this case, Pigeon Guillemot) 



3. Three toes webbed, fourth toe lobed 



(sea duck, in this case, Surf Scoter) 



4. Four toes webbed (in this case, Brandt's Cormorant) 



