I planted my kabocha pumpkin seeds a few days ago about an inch deep in
very damp soil and again, something has been digging them up and eating
the seeds, leaving the husks on the ground. Is it more likely squirrels
or birds? Both are very common here. Whatever it is evidently has a good
sense of smell. Otherwise I can't imagine that they would know where to
dig. How can I prevent this?

Dan