What creature came to the sand overnight?

A skunk came to the sand during the night looking for eggs.

There was some sliver of a moon and in the faint-pearl light he could see the bushy tail, the white stripes down the back, and he had nearly smiled. He did not know how the skunk had found the eggs, some smell, perhaps some tiny fragment of shell had left a smell, but it looked almost cute, its little head down and its little tail up as it dug and dug, kicking the sand back. But those were his eggs, not the skunk's, and the half smile had been quickly replaced with fear that he would lose his food and he had grabbed a handful of sand and thrown it at the skunk.