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Surveyors notebook. Got quite a few of them from when I used to survey. Never used to keep one, but started keeping one for wolves the last couple years. Still I never usually take it in the field, usually sits in the truck and I fill it out at the end of the day when I get back to the pickup. Usually trapping off a snowmobile or occasionally an atv.
Keeps track of what type of set, what lure or no lure. Update it each time wolves or even coyotes (they are a canine also) come close, if they shown any interest or if they turned off before the set, etc. Also if they worked the set and didn't get caught I note why (most often too much or too crusted snow over trap).
For example, I set two pee posts this March in a spot where wolves and coyotes had both crossed. One was a natural pee post that the wolves made and coyotes had peed on. The other was one a little ways away that I made myself. Looking at my notes coyotes came by twice and stepped between the trap and the tree I had pee on and peed on it, but never revisited the natural pee post. Last day of the season a wolf came by and stepped on that trap, unfortunately we were having warm days and cold nights and some rabbits had came by and dug down in the snow where the pee had dribbled down the tree (assuming for salt?) and in the process piled several inches of wet sloppy snow on top of the trap that then froze into such a hard crust that it held the wolve up without even dropping the pan. I can look at that and say, "well they used the natural pee post once, but neither wolves nor coyotes visited it again, but the manmade one fifty feet away was visited three times in less than three weeks. Probably worth resetting next year." I count the coyotes as a success, because they were visiting and refreshing it, even though they weren't stepping on the trap that was because I had it spaced back for a wolf, and trap placement for wolves was good since the one wolf to visit the set stepped directly on the trap.
