Hi there. Not sure where you are in SE Mich, but I've seen a few at Bloomer Park in Rochester. Not sure what they were though. I was so excited to see them that it didn't occur to me to try and identify them. Even in my own yard I've seen some interesting critters, such as a humungous salamander under my dog's house. I had never seen a salamander that was the size of my forearm before. Freaked me right the heck out. Good luck!