There appears to be something eating very small holes into my pepper fruits. At first I suspected an insect, but upon cutting the pepper open there were no signs of investation. One of the holes even didn't even completely break through (though maybe the pepper was healing over an old hole).
I'm thinking it might be birds but it seems odd they would drill a hole then stop. What animal might be doing this and is there anything I can do to mitigate it?
Pics of the damaged areas and insides for reference: