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Plate 34. The rabbits are among the rodents whose population fluctuations are 

 correlated with those of the grouse. A (Upper left). The cottontail, found mainly 

 in the disconnected cover areas of grouse range. Photo by A. A. Allen. B (Upper 

 right). The snowshoe hare, found mainly in the extensive northern forests. C (In- 

 sert). The squirrels, of which the gray squirrel is shown, affect the grouse in two 

 ways, as a buffer between the grouse and its enemies, and as a food competitor. 

 D (Lower). The squirrels' love for nuts, and their keen ability to find them, often 

 make the establishment of a direct-seeded oak, walnut or other nut tree planta- 

 tion impossible. The photograph shows the empty shells of a wahmt planting after 

 being dug up and eaten by squirrels. 



