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Long time ago there was a simple way: the board with the bait on its edge is set slantwise against the bucket with water. Hundred years ago this method was perfected F. Bone. He adapted double-arm lever at the end of the board with the same bait figure. 13). A mouse gets the bait and fells down, overbalancing the "swings", which again return to the original position. |
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The trap on the fig. 14) is based on the same principle. This is a tube with a hinge and the sloping rise, horizontally balanced on a stand. Under the tube there is another double-arm lever on the hinge with the shuts on the edges, which can shut the entrance and the exit. The bait is inside the projected part of the tube. The rodent grabs it, the tube overturns under its weight, the lever with the shut draws away and the victim falls into the vessel with water. |
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And another inventor of the «swings» tried «squirrel cage» fig. 15). According to his idea the axis with several cells should be fixed under the hole. The bait is placed on the center of the axis. The rodent attracted by the bait climbs inside of the cages and under the weight of the rodent the wheel rotates, the animal falls down and the wheel again ready for action.
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Another tube-trap is also worth mentioning. See fig. 16). At this time the trap is not straight but curved
slightly as the arc. The bait is placed on the edge of the tube with the plug and the other edge is equipped
with the shutter sliding in the slot. The tube is balanced so that in «empty» status of its edge with the bait it uplifts over the ground while the shutter is pulled out and not very stable and opens the access to the trap.
The mouse, moving along the tube to the bait, shifts the center of gravity of the trap. It rolls on the ground,
uplifts the entrance, the shutter shuts. The situation is hopeless so to say.
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Fig.17 Take a polyethylene bottle and cut its top. Pour a little bit sunflower oil (preferably unrefined) inside. Next, the bottle must be fixed in the leaning position. Put a small strip of plywood so the rodents could climb into the bottle. Attracted by the smell of the oil, they get inside and die. Of course, after the "operation" the trap must be cleaned and renewed.
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The simplest trap is a deep tin can with folded edges buried in the ground. It is used to capture not only small mammals like shrew and mice but also snakes, lizards, beetles. The hole of the trap is covered with a large plate or flat stone. They should be put on small stones so as to leave the right distance. An animal searching the refuge will go under the plate or stone, and fell on the bottom of the can.
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