To mark their territory.
Woodpecker on roof sound.
That annoying peck peck peck called drumming on your roof or siding means a woodpecker has taken a liking to your house.
A drumming woodpecker is warning other birds that your home is his.
Many produce the cries of hawks and other predators to deter woodpeckers.
These can prove effective but the price and installation requirements can be challenging.
Woodpeckers do it for three reasons.
And you re suddenly woken up by the noise of a woodpecker pecking away on the side your house.
The options are limited and for the most part all non lethal.