If you hose down the leaves after you have set them in place, they more or less get stuck together and do not blow around. Oak less so, but almost all others form a nice mat. This makes a really nice mouse shelter, so I can't emphasize strongly enough putting out bait. If you have a lot of natural shelter in the immediate area, like nice, mature landscaping that "hides" ground. I have a lot of Hosta and small elephants could hide out there. I put the bait in a disposable plastic container like you buy food or candy in that snaps shut keep the bait dry. I cut a 1 1/2" diameter hole in one end and put a wire cage over that with a 12 x 12" cement patio block on top to keep it locked to the ground and rain off. The mice can walk through the wire cage, but Raccoons & Possum can't steal the bait. Last year a critter was raiding my traps every night and cleaning me out, every night. I have ten of these around the yard, so he stole about $4 worth every night. After a week I stopped feeding him. I figured he was either dead or too big to kill with $25 worth of bait.