Sadly, despite having some of the largest populations in the UK or Europe of some threatened species, they refuse to breed them to preserve space for other rescues. Historically they bred the golden-cheeked gibbons and Bornean orangutans, but they don't breed either anymore. The only species they do regularly breed is the woolly monkeys, as they are the only place in Europe that has a breeding setup now.
I didn't know that they stopped breeding the gibbons and orangutans. Does the facility have much room to expand, or have they reached the maximum expansion capacity?