I never visited this zoo and it closed down in 2016, but it seems as if it had at least one African and one Asian Elephant together back in 2011. The rest of the animal collection appears to be fairly basic, although Nilgai and Barasingha are both rare in North American zoos.
@DavidBrown The closest I would have come to visiting would have been in 2008 when I spent a day at Toronto Zoo. Bowmanville is an hour northeast from there.