5^ BULLETIN No, 35 



tell you what birds should be counted as residents. You want 

 no 'Floaters'" in your county for they belong somewhere else 

 and would then be counted twice. If young birds of the year 

 are counted they should be designated as young. 



There is no need to complete the census in a single day, 

 nor in a week, if care be taken to avoid duplicating records. A 

 little practice will enable you to carry on the work at odd times 

 successfully. You need only to keep a careful record of all 

 work. 



When your work is completed, if you will send it, with a 

 specific description of the area chosen „ with your name and ad- 

 dress, to the address below, it will be incorporated in a general^ 

 report of work done in many different places with the deductions 

 that may be possible. 



Lynds Jones, Obcrlin, Ohio. 



FURTHER SUGGESTIONS FOR THE TAKING OF A 

 BIRD CENSUS. 



In the above communication. Professor Jones impresses upon 

 our minds the importance of general utility of any well taken bird 

 census; he also offers many valuable suggestions as to the mode 

 of procedure, and a few words of caution; valuable to any one 

 who may decide to take up this novel and all-absorbing branch 

 of field work. 



The writer has been engaged in the enumeration of the 

 avian population of a stated district for several years past. The 

 outline of the work he has blocked out, may prove of interest 

 to many, as it fills out in a measure the details omitted by Pro- 

 fessor Jones. A correspondent has remarked that it necessitates, 

 scarcely less than a biological survey of the section studied, but 

 it is not intended to be strictly so, only the most numerous and 

 familiar plant and animal life havingan important bearing upon 

 the presence, obsence, increase or decrease of our birds need 

 be taken into consideration. 



ist. Map out a tract of land one square mile (640 acres) most 

 readily accessible and if possible containing a fair proportion 



