Over the past few weeks, Judy Camuso, commissioner of the Maine Department of Inland Fisheries and Wildlife, has been spending as much time as possible in the woods, deer hunting. That effort paid off on Saturday, even though no deer showed up. Instead, Camuso had a once-in-a-lifetime encounter with one of Maine’s most elusive wild animals: a pine marten. Camuso was deer hunting near Greenville when she caught the attention of a red squirrel, which chattered at her and voiced its displeasure at her arrival in its home territory.