List of Illustrations 



Another cliff view .... 



A group of Gannets 



Gannet and Murres incubating (x 2) 



Nesting-site of Razor-billed Auk 



Eggs of Murres as laid on ledge 



A Gannet colony 



A Puffin sitting for his portrait (x 4) 



Another Puffin portrait (x 4) . 



Razor-billed Auks at close range (x i 



Group of Murres, Puffins and Razor-billed Aul 



The Pillar, or Pinnacle, North Bird Rock 



Nest of Gannet, North Bird Rock . 



An incubating Briinnich's Murre 



Common Murres on their eggs (x 3) 



Kittiwakes nesting (x i^) 



Gannets, Murres and Kittiwakes on the lower ledges 



The home of the Ocean Wanderers 



A pair of Greater Shearwaters 



Two Greater Shearwaters close to vessel 



The Greater Shearwaters, a hungry horde 



Wilson's Petrels, or '* Mother Carey's Chicken 



Sooty and Greater Shearwaters 



Wing-study of Western Gull 



Western Gulls in Flight . 



Another study of Western Gulls 



Herring Gulls alighting on trees 



Nest of Herring Gull 



Slovenly nest of Common Tern 



Well-built nest of Common Tern 



Nest of Least Tern 



Nest of Ring-billed Gull . 



Nests of Double-crested Cormorants 



58 

 59 

 60 

 61 

 62 



63 



67 

 68 

 69 



70 

 74 

 75 

 77 

 78 



79 

 80 



97 

 108 

 109 

 III 

 114 

 116 

 131 

 ^33 

 135 

 137 

 138 

 142 



143 

 144 

 148 

 149 



XIV 



