The new book I just published " AN OUTDOORSMAN' S GREATEST DISCOVERY" proves that every trap and device creates a magnetic field. Animals respond to that field in positive and negative ways, depending on the intensity of the field. It shows what was discovered allows a trapper or any other individual with a magnetometer can tell whether which animals will avoid the device. It literally explains how the animal will respond and at what age he will be able to tell. By knowing this when shopping for traps and snares, one can tell which ones will work for you best in your situation and location. It doesn't lie

There is an easy way to test traps to see if a EMF is keeping them out or reducing what enters a cage. Take two double door powered door cages 12-14" wide15 to 16" tall. One has a field intensity higher than the average of the earth where it is tested. The other same except the field is substantially reduced going through the trap. Set the traps side by side on a runs or cross overs with traps about 4-6 inches apart. Also set traps side by side in 5-6" of water with grass between them with lure. place sticks or debris to block the beaver from trying to go between the traps. Target beaver because you can narrow down the amount of area concentrating the animals. They are responsive to EMF. Do your testing when water temperature is above 45 degrees and outside temperatures range from 40 degrees night to 70 degrees days. Go to 20 locations for water sets in shallow water and 20 locations with land sets. Submerged is not needed, because most would be a type of forced set. Best to go to an area that was trapped some minimally using exposed conibears at least about a year or more before. Set two pairs of traps, or more, at each location. Use guillotine, lockbar. or bifold doors as long as each trap set side by side is basically the same size, and has the same claimed function. Do each test with each trap similar such as both have a wire trigger or both have a pan.

Write down the moon phase, temperature, what animals were caught in which traps. Record an estimated age and any distractions such as a controlled burn, heavy equipment use, or public intervention such boating and shooting.

You are going to find at least a two to one advantage of the reduced field traps in catches over the high intensity traps. The end total should be at least 3 or more to one advantage of the cage trap with the low intensity over the trap with the higher intensity field in actual catches.There will be a larger number of mature or three year olds or older beaver in the low intensity trap and more of a percentage of the catch being younger beaver in the high intensity trap.

Record incidental otter catches and same data. Record non targets such as turtles, coon and fish. This will document the door was down not allowing a targeted catch.

Kirk DeKalb