common iguana (Iguana iguana)

photo taken at Jurong Bird Park, outside the Waterfall Aviary, April 2014.

I thought this was a fake iguana in the tree at first, until it moved! Apparently the iguanas which roam all over the bird park descend from escapes/releases from the now-defunct reptile park which used to be next door. I saw three adults while at the park and a juvenile so they are obviously now breeding in the wild. I had never seen one before this visit in Singapore, which I assume is probably due to increasing numbers. The reptile park would have closed about ten to fifteen years ago I guess.

That's interesting, another zoo-escape leading to a population becoming established!

Singapore's climate is ideal for this sort of thing as well. Zooish said they haven't spread beyond the bird park area but it is only a matter of time if they don't get stopped. I've mentioned this in earlier years as well, but several bird species now established in Singapore derive from Jurong (cattle egrets, white ibis, pied imperial pigeons [although I've only seen the latter within Jurong itself]), and of course there are the painted and milky storks from the zoo as well.

Then there are things from the pet trade now fully established like red-eared sliders and probably other turtle species, changeable lizards, various exotic fish.....

@Chlidonias

Are the Painted and Milky Storks released?

@Dr. Wolverine the zoo has/had a free-ranging colony of Painted and Milky Storks which have since spread across the island. Similarly the Painted Stork colony at Zoo Negara in Malaysia has resulted in a strong wild population on Peninsular Malaysia.

Thank you @Chlidonias!