Every time I go to check the snap traps I've set to catch the mice I notice that they ate the peanut butter off the trigger but didn't get caught. Why is this?
Mice are really resourceful creatures and smarter than a lot of people think. I've seen videos in rodent control seminars where a mouse actually built a bridge over a glue trap out of paper and other debris over time. Some tips in trapping with snap traps would be to only use a smear of peanut butter if that is your bait of choice. Make the mouse work at getting a taste. In almost every account I would go into where the customer tried to catch the mouse first, I would find a snap trap with a glob of peanut butter. Undoubtedly the mouse will feed off of this glob until it is gone. Just a dab will do ya. Next thing is to try to switch up on your baits. Chocolate that can be formed around the trigger so the mouse has to tug is a good way. Meat and cheese that can be attached to the trigger is good also. Cotton or dental floss tied to the trigger so the mouse has to pull is great because they also hunt for nesting material during their travels. Remember, laying the cheese of the chocolate on top of the trigger does nothing because the mouse will be able to eat around it. Try experimenting with how sensitive the trap setting is also. Try to make it as sensitive as you can. Some people set it all the way so their fingers don't get snapped. The more sensitive the better. Happy hunting!