We had a visitor

You never know who's going to show up on Seven Cats Farm. There are deer roaming the fields, wild turkeys making daily (sometimes twice daily) walks around the house. There is the postman, FedEx and UPS people, and sometimes a worker or two.

I see most of them as they pop into my little space. Sometimes I say hi, sometimes I can't.

But we had a visitor I did not see. How do I know there was someone there?

She left a clue.