We had a primate, two ungulates and a carnivoran, so this one should be a bird.
The black swan would be a very simple addition, but its super common in zoos, would provides us finally with another waterfowl (even if its "just" another swan), especially with one that feels more actual zoo animal rather than ambient animal
The black swan would be a very simple addition, but its super common in zoos, would provides us finally with another waterfowl (even if its "just" another swan), especially with one that feels more actual zoo animal rather than ambient animal