Hello, I live in Northern CA and I have several fruit trees that are producing nicely now after several years however, something is eating the pears and the nectarines - the nectarines appear to only have the skin eaten but the pears are getting chunks of the pear as well. I cut a pear open that had been eaten on the outside and nothing was inside so it appears to be only eating and then taking off.

Any ideas?
MOK