I hope this is the appropriate place to ask about larger urchins. We have a storage area for archaeological materials (almost all inorganics, typically ceramics, stone and iron) that keeps getting attacked by squirrels. They like to eat the glue in our corrugated boxes, thus destroying our provenience data. Then they will sometimes nest in the boxes! Very disheartening. We keep trapping them and plugging up their outside entry points. We prohibit all bonafide food sources from storage and are now switching over to glueless twin-walled polyethylene cartons with duplicate labelling. Still with all that I've learned not to under-estimate these critters. Is there anything else we can do?
Dennis Dennis Piechota Conservator Fiske Center for Archaeological Research UMass Boston Office: 617-287-6829