Hard to tell from the pic, but looks like the weather stripping is damaged?
I have seen squirrels do damage like this over time, their claws are so small that they don't usually make big gouges, they're very fine scratches. Also their tiny paws can reach in there and tear up the weather stripping.
I have seen squirrels do damage like this over time, their claws are so small that they don't usually make big gouges, they're very fine scratches. Also their tiny paws can reach in there and tear up the weather stripping.