This is one, large mixed exhibit for Gelada, Nubian Ibex, Cape Rock Hyrax and Abyssinian Blue-winged Goose.
It's fantastically landscaped and themed, and in most other zoos would be the best exhibit by a country mile (Zurich, of course, has Masoala...). We turned up at around 11.15 and all four species were out and about (the Geladas and ibex are not out in the paddock 'til 11 and by our return visit later in the day were nowhere to be seen, so I recommend 11.15 as a time to visit!).