List (jf Illustkatioxs 



Ring-billed Gulls b)' their nests 



Ring-billed Gull incubating 



Ring-billed Gulls on Rocks 



Young Common Tern 



Common Tern coming to her eg 



The same Tern incubating 



Young Ring-billed Gull . 



Franklin's Rosy Gull colon\' 



Nest of Franklin's Gull 



Pair of Franklin's Gulls on their nes 



Scene in Franklin's Gull colony 



Franklin's Gull and chick 



Nest of Black Tern 



Typical Dakota slough 



Nest of Canvasback 



Nest of Canada Goose 



A Mallard drake 



Nest of ^lallard drake 



Nest of Redhead 



Another view of Mallard drake 



Nesting-site of Canvasback 



Nest of Lesser Scaup Duck 



Nest of ^^'hite-^vinged Scoter 



A Scoter detained by her nest 



Nesting-site of American (iolden-eyt 



Golden-eye's nest in stub 



Young Shovelers in their nest 



Nest of Ruddy Duck 



Nest of Redhead 



The same nest, showing surroundings 



Nest of Canvasback with egg of Ruddy Duck 



A Magdalen Islands' morass where Ducks breed 



PAi;i-: 

 15- 



156 



157 



iCo 

 i6[ 

 162 

 164 



166 



173 



,76 



178 



181 

 182 



I S3 

 184 



188 

 192 

 193 

 19s 

 197 

 I9S 



204 



204 



205 

 207 



