Humphrey has been missing since this afternoon around 4:00pm. (10/I was trimming trees in the back yard, and he and his sister Pearl wandered into the woods (something they do fairly often). I lost sight of them after a while and whistled for them to come back (which they always do) but only Pearl came back. We have wooded conservation land behind out house, all the way to the Milford Rail Trail, and that's the direction they went in, but they've never gone that far back. He usually keeps his sister in his sight, so I'm very concerned.