CONTENTS. XIII 



Family Alcidse — Continued. Page. 



Brachyramphus hypoleucus 149 



Xantus's Murrelet 149 



Habits 149 



Distribution 153 



Brachyramphus craveri 153 



Craverl's Murrelet 153 



Habits 153 



Distribution , 156 



Cepphus grylle 156 



Black Guillemot 156 



Habits 156 



Distribution 161 



Cepphus mandti 162 



Mandt's Guillemot 162 



Habits A 162 



Distribution 166 



Cepphus columba 167 



Pigeon Guillemot 167 



Habits 167 



Distribution 172 



Uria troille troille 172 



Murre 172 



HAblts 172 



Distribution 182 



Urla troille callfornica 182 



California Murre 182 



Habits 182 



Distribution 189 



Uria lomvia lomvla 189 



Brflnnich's Murre 189 



Habits 189 



Distribution 195 



Uria lomvia arra 196 



Pallas's Murre . 196 



Habits 196 



Distribution 199 



Alca torda 199 



Razor-billed Auk 199 



Habits 199 



Distribution 207 



Plautus impennis 208 



Great Auk 208 



Habits 208 



Distribution 215 



Allealle 215 



Dovekle 215 



Habits 215 



Distribution 223 



References to Bibliography 225 



Explanation of Plates 233 



Index 241 



