j&irli - lore 



November- December, 1921 



CONTENTS 



GENERAL ARTICLES page 



Frontispiece in Color. Rusty Blackbird; Brewer Blackbird. .Louis Agassiz Fuertes. . 



A Double Tragedy. Illustrated Dr. and Mrs. F. N. Wilson. . 281 



What Birds Signal with Their Tails? Ernest Thompson Seton. . 286 



Cultivating the Birds. Illustrated Craig S. Thorns. . 287 



Billy, a Great Horned Owl Dell Coleman. . 293 



The Migration of North American Birds. XVII. Rusty Blackbird, and Brewer 



Blackbird Harry C. Oberholser. . 295 



Notes on the Plumage of North American Birds. Sixty-second Paper 299 



Frank M. Chapman. . 



Bird-Lore's Twenty-second Christmas Census /. T. Nichols. . 300 



301 



NOTES FROM FIELD AND STUDY 



Ontario Notes (Illus.), Mary D. Perley; Bird Observations During a Mild Winter 

 IN Central Oklahoma, Margaret M. Nice; Minnesota Migration Notes, Homer Collins; 

 American Egrets in New Jersey, Arline B. Hooker; Scarcity of Nighthawks, /. E. H. 

 Kelso, M.D.; Olive-sided Flycatcher on Long Island, C. M. Lowerre; A Friendly 

 Wood Pewee, Beatrice Sawyer Rossell; Robin and Sn.ake, W. A . Marshcill. 



THE SEASON. XXVIII. August 15 to October 15, 1921 304 



Winsor M. Tyler; J. T. Nichols; Julian K. Potter; Harry C. Oberholser; Lynds Jones; Colin 

 Campbell Sanborn; Thomas S. Roberts; Harry Harris; W. H. Bergtold; Amelia Sanborn 

 Allen; Frances B. Schneider. 



Annual Congress of the American Ornithologists' Union 316 



BOOK NEWS AND REVIEWS 317 



Bent's Life Histories; The Auk; The Condor. 



EDITORIAL 319 



THE AUDUBON SOCIETIES— SCHOOL DEPARTMENT 320 



Concealing Coloration in Birds (Illus.) . A. A. Allen; For and From Young Observers. 



THE AUDUBON SOCIETIES— EXECUTIVE DEPARTMENT 329 



Seventeenth Annual Meeting; More Federal Bird Reservations. 



ANNUAL REPORT OF THE NATIONAL ASSOCIATION OF AUDUBON SOCIE- 

 TIES FOR 1921 333 



*:^* Manuscripts intended for publication, books, etc., for review and exchanges, should be sent 

 to the Editor, at the American Museum oj Natural History, yytk St. and 8th Ave., New York City. 



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