Fig. 8. TV/ENTY-FIVE MOST IMPORTANT FOOD PLANTS USED BY 

 THE RUFFED GROUSE IN THE NORTHEAST 



FROM 65% TO 88% OF THE FOOD OF THE ADULT GROUSE AT ANY TIME OF THE 

 YEAR WILL USUALLY COME FROM THIS GROUP 



PLANT GROUPS 



MONTHS UTILIZED 



Jan. I Feb. | Mar. | Apr. | May | June | July | Aug. | Sept | Oct | Nov. | Dec. 



BIRCHES 



(Betula) 



SEDGE .r 



(Carex) ^ 



DOGWOOD ■ 



(Cornus) ■ 



HAZELNUT 



(Cory! us) 



HAWTHORN r 



(Crataegus) L 



BEECH ■ 



(Fagus) ■ 



STRAWBERRY ■ 



(Fragaria) * 



WINTERGREEN 



(Gaultheria) 



MOUNTAIN LAUREL.. 



(Kalmia) 



CANADA MAYFLOWER 



(Maianthemum) 



APPLE 



(Malus) 



PARTRIDGEBERRY 



(Mitchelia) 



HOPHORNBEAM 



(Ostrya) 



FERNS 



(Polypodiaceae) 



POPLARS 



(Populus) 



CHERRIES 



(Prunus) 



OAKS 



(Quercus) 



SUMACS 



(Rhus) 



ROSES 



(Rosa) 



BRAMBLES _.. 



(Rubus) 



SHEEP SORREL 



(Rumex) 



GREENBRIERS. 



(Smiiax) 



BLUEBERRIES_ 



(Vaccinium) 



VIBURNUMS 



(Viburnum) 



GRAPE 



(Vitis) 



Period of use as a primary food 

 Period of use as a secondary food 



112 



