Hi! I came upon this forum by chance and was amazed to see my favourite primate at Paignton Zoo being discussed. I can give you some more information about her. I believe she had 11 offspring only 2 of whom survive - Nakal and Gambira. The last one to die was a son in France. Chinta is her granddaughter, offspring of her daughter, Senja, and Kadim (Bulu's son?). Senja came from London with her but sadly died in 2000. Nakal became a father again last year in Fuengirola. Gambira is actually higher up the mean kinship list than Chinta and therefore considered more suitable for breeding. Bulu's family tree would make fascinating reading!
I wish Paignton would get a move on with the promised new male as the 3 orangutans do make a sorry sight. The male's island is being revamped so maybe it'll be sooner rather than later. Because Chinta was trying to become the dominant female, they have had to separate them. So Chinta can be found alone in the show den while Bulu and Gambira are outside, and vice versa. While the outdoor area is possibly second to none, I think the show den, while large, provides little to interest them. The only time I have seen it being used fully from top to bottom, was when Gigit was there. There is a real need for more enrichment such as you find at other zoos, notably Monkey World. Who wouldn't look bored given the same situation every day?
I have wondered myself whether they would ever just concentrate on the gorillas. I sincerely hope not. While the gorillas are immediately 'interesting', you can never make the same connection with them that patience brings you with an orangutan such as Bulu.