Contents of Volume XXXI. vii 



ILLUSTRATIONS. 



Plates. 



Plate I. Philip Lutley Sclater. 



II . Mstrelata chionophara Mxirphy . 



III. Strawberry and Gravel Islands, Wisconsin (two views). 



IV. Blind on Strawberry Island and Juvenal Gull (two views) . 

 V. Herring GuUs fighting and parent feeding young (two 



views) . 

 VI. Herring GuU with young at nest. 

 VII. Characteristic GuU Nest and GuU on nest (two views). 

 VIII. Newly-hatched Herring GuUs (two views). 

 IX. Gull scene at Gravel Island. 



X. Parent Gull and young and GuU crying (two views). 

 XI-XII. Views of Clay and Palo Alto Counties, Iowa. 



XIII. Caprivndgus eleanorce PhilUps. 

 XIV-XVII. Nest of the Ferruginous Rough-leg (five views). 



XVIII. Ferruginous Rough-leg (two views). 

 XIX-XX. Herring Gulls (tlu^ee views). 

 XXI-XXII. HolboeU's Grebe on the surface and diving (four views). 



XXIII. Views of Bear and Catoma Swamps, Alabama. 



XXIV. Heads of ducks of the genus Oidemia. 

 XXV-XXVII. Primaries of ducks of the genus Oidemia. 

 XXVIII-XXX. Skins of Oidemia. 



XXXI. Views of Lookout and Genesee Mountains, Colorado 



(two views). 

 XXXII. Nest of Red-shafted FUcker and young Long-crested Jay 

 (two views). 



XXXIII. Nests of Gray-headed Junco and Spurred Towhee (two 

 views) . 



XXXIV. Osteology of the Passenger Pigeon. 

 XXXV. MoUymoke, Diomedia melanophrys (two views). 



XXXVI-XXXIX. Various species of Tubinares (niunerous views). 

 XL. Map showing distribution of Psaltriparus in California. 

 XLI. Sooty Albatross and young and skins of Sooty Albatrosses 

 (two views). 



Text-Cuts. 



Page. 

 Map of GuU Colonies, Green Bay, Wisconsin .... 23 



Map of Clay and Palo Alto Cos., Iowa 71 



Reproduction of Audubon's Permit ...... 106 



BiUs of Oceanodroma castro bangsi and 0. c. cryptoleucura . . 389 



