One of the ways you can tell if it is a baby wild rabbit if it has a little “white blaze” on the forehead. (If it still has the blaze, it’s still too young to fend for itself, so just watch for a mother)   Here is a great link that helps people identify wild  vs domestic.   

http://www.rabbitweb.net/wild-babies.asp

http://www.metropets.org/Newsroom/a…ontail.php

If it is wild, it’s best to leave it be, but you can get suggestions though about wild bunnies from your humane society. Most have a local wildlife rehabilition department, also many counties will have a wildlife rehabilitation resource that you can contact if you are worried. 

We’ve also had a similar incidents happen with other members and so their threads may helpful as well. 

https://binkybunny.com/FORUM/tab…fault.aspx

Is Duncan hanging out in your area on a regular basis?

What color is s/he? Wild rabbits are almost always that same kind of brown color. Yes, domestic rabbits can be that color too, but if s/he is not that color, s/he is domesticated! I mean, s/he might still be feral, but there is a difference.

I just realized (i must be scanning not reading!) that you said a “medium” sized bunny. Kytattin has asked a very important question so that will help us figure this out. The second link i provided will also help with identifying domestic vs wild as well as it discusses head shape, etc.

Maybe you could get a photo?

Also..a wild rabbit won’t allow you to even get close to it, where as a domestic bunny, even if feral, may still run away,but it would let you get a little closer than wild one would (that is my understanding ffrom what I’ve read and from rescuers who have had to catch feral domestic rabbits)

From the photo he actually looks pretty big in that photo which makes me think he’s actually domestic! Very hard to tell though really, but just based on the size. Cottontails are relatively small in comparison.