I was sad when I first learned that opossums eating ticks was a myth:Yes, you need to find your local wildlife refuge or game warden. The local police can also help tell you who to call. We have a possum that lives in an old coal wagon on our property. We leave him alone, because we know they are great tick control experts. Thank goodness, we've never had one in the coop. He has come out for Trick or Treat the one time and earned his name, "Henry." It was really weird having him come right up to me and look up as if looking for a hand out. I just pointed away from the children and told Henry to go back to bed. Thank goodness Henry listened to me and wondered off in the direction I pointed. The children and parents thought he was a pet! I told them he is a wild animal and can not be petted or fed.
But it's a great lesson in two points: 1) Just because something gets repeated frequently does not make it true. 2) Just because a scientist says something is so does not make it so.https://extension.psu.edu/do-chickens-guinea-fowl-or-opossums-control-ticks
The authors concluded that opossums do not act as "ecological traps" for ticks, and likely do not consume many ticks at all.
We have to constantly check for ticks on the kids. Deer ticks can be so dang tiny ... smaller than a poppy seed. If you think about it, an animal would have to be pretty small to effectively feed on something like that.