I don't know how to post a link to articles. There is an article by Ken Perrotte, entitled "New Study Says Possums Don't Like Eating Ticks", updated Jan 5, 2022. Perhaps someone more technologically capable than me would be kind enough to post it.

My take on possums has always been to shoot them. I have my doubts that they actually eat many ticks at all. I've never watched a possum for any period of time and thought that it looked like it was hunting ticks, or any other insect. They do eat turkey eggs and partridge eggs. Turkeys eat a lot of insects, including ticks. Just spend a little time watching them. Every egg that a possum eats is one less that can turn into a tick eating bird. I'd rather watch turkeys in my yard and around the pond and food plots than possums.