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Plate 51. Coniferous reforestation, or natural pure stands of pines and other 

 conifers, vary greatly in value to grouse according to age. A (Upper). For the 

 first few years the young trees affect the old field complex very little. B (Center), 

 From about five to fifteen years of age the stand is mixed with natural reproduc- 

 tion, usually hardwoods, and serves as overgrown land. It may be of considerable 

 value as a feeding area, is likely to be excellent cover for cottontails. C (Lower). 

 After the crown closes, often between fifteen and twenty-five years of age, the 

 competing natural vegetation is rapidly driven out. As the lower limbs die, the 

 shelter \alue is reduced. Food is practically non-existent. 



