I have 2 small live oaks, not sure of their age, 5 years ago when we put in yard and irrigation they have really grown and are starting to provide that shade evening shade from sitting west sun. Now we have some large woodpeckers that are really drilling away and leaving their mark. The trees have been growing well, leaves look good. We had all our trees professionally trimmed 2 summers ago for the first time. Are these woodpecker going to cause harm to my 2 little guys? If so, what do I do?

Thanks,
Delizard