CONTENTS. 



PAGE 



Some Light on Night Migration-. By Witmer Stone .... . .... 249 



Nesting of the Great Blue Heron in Montana. By E. S. Cameron. (Plates IV 



and V) 252 



The Catalina Island Quail. By Joseph Grinnell 262 



Isolation versus Natural Selection. By Leonhard Stejneger 265 



Some Notes on Indiana Birds. By Amos\W. Bv&er 271 



List of the Birds of Louisiana. Part II. Preliminary Sketch, Concluded. 



By George E. Beyer, Andrew Allison, and H. H. Kopman 275 



Unusual Abundance of the Snowy' Owl (Nyetea nyctea). By Ruthven Deane . . 283 

 A Bibliography' and Nomenclatok of the Ornithological Works of John 



James Audubon. By Witmer Stone 298 



Notes on Some Northern Birds. By Rev. C. W. G. Eifrig 313 



Unpublished Letters of John James Audubon and Spencer F. Baird. By Ruth- 

 ven Deane ; 381 



General Notes. — The Masked Duck in Maryland, 335; Southeastern Michigan Records, 

 335; Hudsonian Godwit I Limosa hcemastica) in Ontario, 335; The European Turnstone 

 in Massachusetts, 335; A Rutted Grouse near Camden, South Carolina, 336; Note on 

 the Crop Contents of a Nestling Mourning Dove (Zenaidura macroura), 336; Long- 

 eared Owls resident at Flushing, Long Island, N. Y., 337; Nest of Saw-whet Owl at 

 Bridgewater, Mass.. 337; Uranomitra salvini in Arizona, 337; Nesting of Crossbills 

 in Nova Scotia, 339; Breeding of the Savanna Sparrow {Passerculus sandunchensis 

 savanna) in Southern New Jersey, 340; Baehman's Finch in Montgomery County, 

 Virginia, 341; The Rough-winged Swallow and Duck Hawk near Springfield, Mass., 341; 

 Occurrence of the Titlark I AiUlnts pensylvanicus) in Maine, in Spring, 341; The Titlark 

 at Portland, Maine, in Spring, 342; The Carolina Chickadee in Southern Michigan, 

 342; A Great Flight of Robins and Cedar-birds, 342; Chuck-wuTs-widow and Mock- 

 ingbird in Ontario, 343; Wayne County, Michigan, Notes, 344; Notes from Connecticut, 

 344; The Shedding of the Stomach Lining by Birds, 346; Virginia Creeper as a Winter 

 Food for Birds, 346; The Michigan Ornithological Club, 346. 



Recent Literature. — Buturlin's 'The Breeding-grounds of the Rosy Gull,' 348; Clarke's 

 'Birds of the South Orkney Islands,' 350; Menegaux and Hellmayr on the Passeres 

 • Tracheophones of the Paris' Museum, 351; Shelley's 'The Birds of Africa,' 353; Nash's 

 'Check-List of the Birds of Ontario,' 353; 'An Ecological Survey of Northern Michigan,' 

 354. 



Notes and News. — Obituary: Emile Oustelet, 355; Victor Fatio, 356; George F. Bren- 

 inger, 356; La Rue K. Holmes, 356; J. H. Batty, 356; Frank J. Thompson, 357 

 California Academy of Sciences, 358; The Cat Question in Australia, 358; New Bird 

 Books, 359. 



'THE AUK,' published quarterly as the Organ of the American Orni- 

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 Frank M. Chapman. 



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