This is the third year that this doe has come around on a regular basis to visit Sarah. She will come up to within two or three feet on the other side of the fence and they will sniff each other. This has become a regular ritual and she is content with either myself or Carol being out there too. These photos were taken after all four dogs went out for their morning potty break and the doe did not leave.
We let the dogs out one at a time and they do not bark or charge the fence but follow Sarah's lead in just going about their business and the deer is as calm as can be. She does not come to the fence to sniff the other dogs - just Sarah whom she clearly trusts. This behavior says a lot about animals and how they interact with each other.