I am a master gardener but I do not have an answer for a friend who wanted to...
I am a master gardener but I do not have an answer for a friend who wanted to know about what to do about a blue bird (not a woodpecker) that was pecking holes over the front door of the home. This has been going on for some time and has caused quite a bite of damage already. The exact type of bird is unknown except it is blue in color. Is there anything that is know that will prevent or deter further damage from these or this bird.
Montgomery County Ohio
Your friend is most likely seeing a Tufted Titmouse. They are similar in size to blue birds. Titmice are known to drill holes in wood. I did not find any information that it is common for Blue Birds to drill holes in homes.
treatment for this kind of damage is the same regardless of the bird causing the damage. The link below is from Extension. The article addresses preventing damage to homes.
Here is an additional link from Cornell that addresses a variety of control measures. Their effectiveness can vary wildly