One thing my mother learned about squirrels is they are rodents and reproduce to the level of their food source, they are not seasonal. She thought they were cure until they were eating all the bird food, her tomatoes and flowers about to bloom. She said she tried to talk to them about self control but it did no good. So my dad built a bird feeder they could not get to, and he put up cages around the tomatoes so they could get to them either. The flowers in pots were brought into the house. When they got into the attic he got the traps and then released them across the lake - but he was sure they got back to the house before he did - so they called in a specialist and made sure everything was boarded up better.
Nature- ya gotta love it. But they are just so cute!