First let me say I give you permission to laugh at me. I was on the phone with my GF and I saw this. I thought that looks like a mouse but can't be because Two would not allow it to live. But Two is good with chasing bats but never had to chase mice. But it didn't move so I said to my girlfriend to hold a moment and went into the kitchen. Well it is a cat toy meant to look like a small ball of yarn with a tail of yarn. It just settled right. Later I went back out and kicked it out of my sight because it was still giving me the willies. To my future house guests my house is still mouse free and not bats in several year. it looks more realistic at the small cellphone picture size.
Ian