I asked you yesterday what I had taken a photo of. Ayla, Iza and Marley got it right in the very first comment. It is the tyre of a 4WD car belonging to one of the people who has a horse living in our fields.
Before we go for our walks we like to check all the cars for new smells and to put our own smells on them.
I am a very good checker so if you want your exhaust system looked over, give me a call.