TWENTIETH CHRISTMAS BIRD CENSUS 



JANUARY— FEBRUARY, 1920 



30c. a Copy 

 SI. 50 a Year 



Edited bit 



FRANK M. CHAPMAN 



Published fob thb Adddbon Socikties 



D. :appIeton Si Companp 



n 



.■6 



COPYRIGHT, 1S20, BY FRANK M. CHAPMAN 



