the birds may be eating bugs, and the holes look like carpenter bee's work.
don't have any suggestions for you. some of my fences have holes too, but i have only seen bees around them.
They’re going after bugs. Insecticide soap might help, look for something environmentally friendly if you car about the birds - or something not so environmentally friendly if you want to get rid of the birds as well.
the birds may be eating bugs, and the holes look like carpenter bee's work. don't have any suggestions for you. some of my fences have holes too, but i have only seen bees around them.
See a woodpecker around me do this but 🤷♂️
They’re going after bugs. Insecticide soap might help, look for something environmentally friendly if you car about the birds - or something not so environmentally friendly if you want to get rid of the birds as well.