TABLE OF CONTENTS. IX' 



Family Laridae — Continued. Page 



Mew gull 14G 



Habits 146 



Distribution ^ 147 



Larus heennanni 148 



Heermann's giill 148 



Habits 148 



Distribution 153 



Larus artricilla 1,54 



Laughing gull 154 



Habits :__ 154 



Distribution 162 



Larus franklini 163 



Franklin's gull 163 



Habits _^_^___::^ii__ 163 



Distribution '_'_'_ I'll' __ll__ 174 



Larus Philadelphia 175 



Bonaparte's gull 175 



Habits 175 



Distribution 179 



Larus minutus 180 



Little gull 180 



Habits 180 



Distribution 182 



Rhodostethia rosea 183 



Ross's gull 183 



Habits 183 



Distribution 190 



Xema sabini 191 



Sabine's gull 191 



Habits 191 



Distribution 196 



Gelochelidon nilotica 197 



Gull-billed tern 197 



Habits 197 



Distribution 202 



Sterna caspia . 202 



Caspian tern 202 



Habits 202 



Distribution 210 



Sterna maxina 211 



Royal tern 211 



Habits 211 



Distribution 218 



Sterna elegans 219 



Elegant tern 219 



Habits 219 



Distribution 220 



Sterns sandvicensis acuflavida 221 



Cabot's tern 221 



Habits 221 



Distribution 226 



Sterna trudeaui 227 



