When you find where a rat is working slightly in many places along a bank and you do not know just where to place your trap, dig a little place in the bank at the water's edge and up above it and set your trap in the entrance under the water a half inch. This will attract the rat and you will most likely get him. It helps to pin down a rat's leg or other small portion of the carcass in the excavation just mentioned. Rats will not eat the meat, but it is sure to draw them into the trap; and then by baiting with rat flesh you will often get a mink.
After you have caught a rat at feeding signs or in any other inconspicuous place and you do not get more after two nights, it is well to move your trap to a new place. I generally trap three nights on one stretch of ground and then take up all except now and then one occupying the most favored positions; the remaining traps will catch the stragglers and the traps you remove and reset will be on guard to a purpose.
Be careful and do not dry your furs by the fire. I saw many lots of rats last fall and into the winter that would break like glass, the skins had been made so brittle by the fire-drying process. It makes the pelt side look dark and unprime as well.
In setting for mink, follow water setting as long as possible and set under over-hanging roots and banks where the tracks are seen or where a log lies up so as to permit the mink's passing under and, in short, wherever the game is most apt to pass thru or under as is the mink's habit. Where there is no timber and the banks are low, then the main dependence is on making a trench as described and pinning down a portion of muskrat.
MUSKRAT HOUSE.
I will also say that I have found rat houses a capital place to catch mink. Both coon and mink visit rat houses that are nearest to shore; knowing this, after you have caught off the rats, dig a hole in the side of the house and throw in a portion of a muskrat. Set jour trap at entrance covered with water or thin mud and if there is a mink or coon that visits the house you will get him if things don't go contrary, the trap fail to get hold or some other ill luck occur.
When a coon is expected a long hardwood stake should be used. I have had a number blunder into rat traps, chew the soft popple or willow stake all to pieces and go off with the trap. And they have never returned one yet.
A word more on the mink question. When I find a place that mink are most sure to pass thru or under, I do not use bait. Especially if the mink is old and cunning and has been trapped, or one that has been nipped by a trap and become "bait shy." For these I make blind sets only. My trap and chain is under water and also my stake.