Linden leaves blown mysteriously into my house

At Gamone, three big linden trees are located in front of the house, and their dead leaves form a brown carpet, appreciated by Fitzroy.

The dry leaves are light, and they're scattered by the slightest breeze. I've been intrigued to find leaves inside my house, even though I usually close the front door. I imagined that brief gusts of wind carried leaves into the kitchen whenever I opened the door. But there's another explanation...

 

Fitzroy's bushy tail works like a vacuum cleaner.