I'm happy to see that Jurong is making a concerted effort to breed many of the less represented species in the SE Asian Aviary. For a long while many species existed as single individuals, including the blue whistling thrush and Reeve's pheasant. It was only in the last 2 years or so that they've finally brought in additional birds. They've also rounded up pairs of the free flying species in the central aviary and placed them in the smaller side aviaries for dedicated breeding (such as the purple-tailed imperial pigeons which successfully produced an offspring soon after).
I'm very impressed with the number of species at Jurong, I saw 218 species on my visit (168 of which were new), but soooo many of the photos recently posted on here show birds I did not see (or possibly misidentified). Do Jurong regularly rotate on-display species, or have they recently acquired many new species?
@zooboy28: A bit of both actually. Jurong adds new species from time to time, but some of the smaller birds species come and go fairly quickly (they don't breed fast enough to replace their numbers or simply die out without breeding). The park has a number of off-exhibit aviaries.