The exhibit formerly housed white-cheeked gibbons but was terrible for them. The AZA was looking for a place to consolidate all of the remaining Sulawesi macaques in the US as they’re a phase-out species. It solved two problems at once.
@FunkyGibbon I haven’t heard of any plans to send any to Europe, although the fact that there is a strong European population for the species is the reason for the phase-out. Ideally the space for macaques left in America will be used for lion-tailed, although there’s been little news in the way of their program since DAK imported a few from Europe a while back.
@birdsandbats I am well aware of the species’ prevalence in roadside zoos. However, as they’re not managed by AZA the decisions of roadside zoos are rather irrelevant to population management in zoos as a whole.