What animal leaves a partial spine behind? This is fairly fresh, and this for us is what they do... the bigfoot leave these things behind... not just for us to find but for Mugs as well. We do not allow Mugs to enjoy such a gift, from someone who is unwelcome.
They go where they want, and travel where they please. They are not leaving bones in the yard to make friends with my dog, or to be polite. The bones left are not special gifts, but are a means to an end. If Mugs is busy chewing on a bone, the less likely he is to pay attention to what is going on secretly within the treeline. It could possibly be an attempt to lure Mugs off the property should the opportunity ever present itself. We try to be very cautious and not leave the dogs outside for more than a few minutes if we are not out with them. But if they- the big guys- had their way, they would have killed Mugs long ago and left his entrails for me to find. That is what they want. I am convinced of that.