This investigation was designed to secure data concerning the over-all effects of a high fox population on other game species, particularly the quail, rabbit, squirrel and ground-hog. In order to obtain a better understanding of the influence of the red fox upon other game species, some knowledge of the size of the populations of other game animals must be known. For this reason, a rather intensive study of the fox was made on the 2300- acre V.P.I. College Farms as some data were available on this area regarding the population and population changes in the quail, rabbit, squirrel and woodchuck. The study was carried on from April, 1950, to March, 1952. An extremely high fox population existed on the area during the period covered by the investigation (April, 1950, through March, 1952), so it was natural for the study to be carried on here. It is hoped that this investigation will point out some of the ecological factors which must be considered in determining a sound wildlife program for the management of the red fox and other game species on the same areas. / M.S.