Surprise sighting by Keith DeClercq of Cazenovia, NY

"While lifting a large rock from a hay field, my neighbor found a large number of chrysalises underneath. It looked like something was storing them, but I guess the caterpillars could have crawled underneath. He found 80 and brought me 49 that I am attempting to hatch. A lot were killed when he moved the rock. I am trying to find any information regarding mice or chipmunks storing them for food, or will the larvae get under rocks naturally and pile up together?"

Tracking Monarch Butterfly Migration