Marten protection for storage room sought

Hello Motor – Talker ! Unfortunately there is an animal () problem in my garage for the oldtimers. In a routine check in the old iron warehouse I had to make an unsightly discovery: there were on the wonderful row hexane M123 of MB crumbled egg shells. Well, the engine likes petrol rather than the chicken products and is therefore not in question. The find happened at Easter and therefore also the Easter bunny came into suspicion. Since the eggs were not so colorfully painted however, mu The storage room stands in the country and unfortunately offers a few loopholes for slim and small bodies, which cannot be stuffed. With the Magnum I do not like to lurk, holes in the holy tin I want to avoid. What is recommended and effective? This device was recommended to me. Does anyone know this? Questions about questions, maybe someone can help me. Dear Gruss 124er Kombi