1. 4-Aminopyridine for protecting crops from birds—A current review;Besser,1976
2. Birds and sunflower;Besser,1978
3. Late-summer feeding patterns of red-winged blackbirds in a sunflower-growing area of North Dakota;Besser,1979
4. Timing bird control applications in ripening corn;Bridgeland,1979
5. Protecting ripening corn from blackbirds by broadcasting 4-aminopyridine baits;DeGrazio;Journal of Wildlife Management,1972