I placed a hive on a nearby blueberry farm last weekend. I just went by a few minutes ago to check on it. It's sitting under an acorn tree, so I didn't think anything of it when I approached and saw a couple of acorns on the landing. When I opened it though, there were probably (50) or so down one side (all under frame number 1). The hive is angled pretty well towards the front, so I know that these did not roll back inside. I HAD no entrance reducer on there. I added one just now. Anyone ever found this same thing? Do you think it was a rat or chipmunk?