Continuation of the 



J New Series, 



Old Series, \ 

 Vol. XII. j Bulletin of the Nuttall Ornithological Club \ Vol. IV 



The Auk 



£ Quarterly journal of €>nttt^olo^ 



EDITOR, 

 J. A. ALLEN 



ASSOCIATE EDITORS, 



ELLIOTT COUES, ROBERT RIDGWAY, WILLIAM BREWSTER, 



and MONTAGUE CHAMBERLAIN 



VOLUME IV 



PUBLISHED FOR 



The American Ornithologists' Union 



NEW YORK 



I_i. S. FOSTER, 



18S7 



