Hi....opossum mommy here.
Granted mine weren't quite that little when I got them, but still tiny and helpless.
All perfect advice from buzzard chick. However, I found mine would NEVER use a puppy/kitten bottle. I had to use a dropper until they were off the bottle completely. I used wet q-tips to "potty" them when they were really tiny. They are precious little animals and if you can't get a wildlife rescue person to take it over, they make wonderful pets......quite easy to potty train and very affectionate. Since I highly doubt you will raise it and then lock it in the chicken coop, I don't think you really need to go kill crazy as some would recommend.
Edit to say, just in case you would like to see one of mine now, about three or four posts down on this thread shows my middle son with my boy, Topaz.
https://www.backyardchickens.com/forum/viewtopic.php?id=37678



Edit to say, just in case you would like to see one of mine now, about three or four posts down on this thread shows my middle son with my boy, Topaz.

https://www.backyardchickens.com/forum/viewtopic.php?id=37678
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