Western Massachusetts we found this fellow sunbathing on a rock.
Assuming it was just a common garter snake, we snapped a photo and
moved on. Later we found that what we actually stumbled on was a
milk snake. Milk snakes are very similar in appearance to the
copperhead and aggressive but they are not poisonous. If feeling
threatened they whip their tail around making a whizzing noise. If we
had known this, we would have provoked it and gotten a video of the snake
in action. With our luck next time it will be a copperhead!