CAPTURING FOXES 11 



for otherwise the parent foxes may move them to another den while 

 he is away. The holes should be plugged with rocks, heavy brush, or 

 other materials that the foxes cannot remove. 



Sometimes when the den is shallow the pups can be dug out and 

 destroyed easily. The work, however, may lie difncull if the den has 

 a long deep tunnel leading to the lair. If the hunter does not wish 

 to take the time to dig out the pups, he may set traps in the tunnels 

 below the entrance plugs and catch the pups as well as the adults if 

 they are in the den. Traps should also be set on the mounds of the 

 den to catch the parent foxes if they are not at home. 



If it is not desired to know the number or size of the pups, they 

 may be gassed in the burrow through a 6-foot piece of hose, one end of 

 which is attached to the exhaust pipe of an automobile and the other 

 put down into the den. All burrow entrances should be closed and the 

 motor allowed to run for 15 minutes with the carburetor set for a rich 

 mixture. Another gas that may be employed is carbon bisulphide. 

 A wad of cotton or other absorbent material the size of a baseball is 

 saturated with the carbon bisulphide and rolled down into the bur- 

 row, and all entrances closed. As this material is inflammable, the 

 hunter should not smoke while using it. Calcium cyanide in the dust, 

 granular, or flake form may also be used. A heaping tablespoon ful 

 should be placed well down into the burrow and all entrances closed. 

 After gassing the den, traps should be set on the mounds at the burrow 

 entrances to catch parent foxes that may be outside. 



BIBLIOGRAPHY 



Eadie, W. Robert. 



1943. Food of the red fox in southern New Hampshire. Jour. Wildlife Mangt. 

 7 : 74-77, illus. January. 

 Krrington, P. L. 



1937. Food habits of Iowa red foxes during a drought summer. Ecology 

 18:53-61, illus. 

 Hamilton, W. J., Jr. 



1943. Mammals of eastern United States. 432 pp., illus. Ithaca, N. Y. 

 Hosley, N. W. ; and MacHregor, A. E. 



1937. Late summer and early fall foods of the red fox in central Massachu- 

 setts. Jour. Mammal. 18 : 366-367, illus. August. 

 MacGregor, Arthur E. 



1942. Late fall and winter food of foxes in central Massachusetts. Jour. 

 Wildlife Mangt. 6 : 221-224. July. 

 Murie, Adolph. 



1936. Following fox trails. Univ. Mich., Mus. Zool. Misc. Pub. 32, 45 pp., 

 illus. Ann Arbor, Mich. 

 Robinson, Milton O. ^ „ « 



1944. Den hunting as a means of fox control. N. Dak. Agr. Col., Hxt. Serv. 



Spec. Circ. A-72, illus. April. Fargo, N. Dak. 

 Seagears, Clayton B. " 



1944. The fox in New York. N. Y. Conserv. Dept. Educational Bull. 85 pp., 

 illus. Albany, N. Y. 

 Seton, Ernest Thompson. 



1929. Lives of game animals. Vol. I, part 2, pp. 423-605, illus. New York, 

 N. Y. 

 ^tf*rt fir A 1VI 



1944. Fox and coyote trapping. Mich. Conserv. Comm. 15 pp., illus. Lansing, 

 Mich. 

 Young, Stanley P. «,.,«« 



1941. Hints on coyote and wolf trapping. U. S. Dept. Int., Fish and Wildlife 

 Serv. Circ. 2, 8 pp., illus. 



o 



