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81 



RELATION OF FOOD, COLD AND SNOW TO WINTER QUAIL LOSSES 

 SOUTHERN WISCONSIN, WINTER OF 1929-30 



NOV. 



DEC. 



JAN. 



FEB. 



MAR. 



EXAMPLE 



Dates upon which covies 

 were visited^ 



'--- Largely corn fed covies(v) ' "' Census approximate 



I from here. 



Exhaustion of trefoil (I); access to corn. 



General Pronounced quail 

 mortality first observed.. 



Exhaustion of ragweed---' 

 Access to corn (12 birds of IV)- 



xtermination of independent 

 birds of IV-, 



NQV 



DEC. 



JAN. 

 CHART 3 



FEB. 



MAR. 



