108 THE WILSON BULLETIN— June, 1921 



One of the more interesting and useful tasks undertaken by 

 the Biological Survey is the determination of our bird population 

 by means of a considerable number of "bird counts" or censuses. 

 These are taken by volunteer observers, over restricted areas, dur- 

 ing the breeding season. Just at this time The Survey is desiring 

 to extend the scope of this work and our members may perform 

 a service by cooperating. Full instructions and report blanks may 

 be secured upon written application. 



The Chicago Ornithological Club has secured permanent quar- 

 ters in one of the session rooms of the Crerar Library. This is 

 indeed a fortunate selection and the C. O. C. now enjoys a conven- 

 ient meeting place in the downtown " Loop." 



Our membership teams have slowed down a bit in their work, 

 doubtless due to the pressing call of the outdoors for their leis- 

 ure time. Prom the results already obtained it is evident that 

 our next year's list will show a substantial gain, and we hope to 

 cut the usual "delinquent list" to a minimum. If members will 

 communicate the names of good membership material to the Sec- 

 retary it will be doing a good turn for the Club. 



Mr. Wm. I. Lyon of Waukeegan, 111., is one of our most enthu- 

 siastic and successful bird-banders. Last year he banded no less 

 than 360 birds, most of which were caught in traps. In the ex- 

 cellent spring number of the Illinois Audubon Bulletin he gives 

 an outline of the methods he used and some of the results ob- 

 tained. 



