ZOOLOGICA 



SCIENTIFIC CONTRIBUTIONS OF THE 

 NEW YORK ZOOLOGICAL SOCIETY 



VOLUME I, NUMBER 7 



THE UNDESCRIBED JUVENAL PLUMAGE 

 OF THE YUCATAN JAY. 



By 

 C. William Beebe, Curator of Birds, 



AND 



Lee S. Crandall, Assistant Curator. 



PUBLISHED BY THE SOCIETY 



THE ZOOLOGICAL PARK, NEW YORK 



December 5, 1911. 



