That's a Lot of Damage
It's evident where the woodpecker was damaging the home. Woodpeckers hammer into homes for several reasons, such as to attract a mate, to store for, or to feed on insects.
Putty it Out
After installing several bird deterrents around the home, we patched up all the holes with wood putty.
Fills it In
This will fill in all the holes. We then let the putty air-dry and then sanded it.
The homeowner provided us with the same paint as his siding, so we painted the patched areas and let it dry. Now the homeowner will no longer have any issues with woodpeckers damaging his home.