Black snakes. They eat poisionous snakes and are good for the environment etc but not in my yard! It's a bad year for snakes. Two people I have talked to this week had them in their house! One was the girl at the feed store who had one on her kitchen counter behind the microwave. She freaked and all her friends laughed at her because she handes lots of snakes at the store. I'm over them and careful everywhere I walk and am constantly checking the bird netting which has fouled two attempts to get at the chicks so far in their nursery.Wow, what kind of snake was it?? We've got no snakes, racoons or skunks in the Yukon but lots of other predators. Right now they've closed a few campgrounds up here cause of bear problems.