When visiting the Kuala Lumpur Bird Park it would seem a pity not to visit the Kuala Lumpur Mouse Deer Park as well. It is only a very short walk away and is definitely worth a visit. The Mouse Deer is a special animal within Malaysian Folklore so seeing them here I thought would be extra special. It wasn't though. Still a very pleasant aside and a relaxing half hour or so.
In the spirit of @snowleopard, I visited so you don't have to. Unfortunately the mouse deer have all gone, replaced in what I presume were their enclosures by a collection of poultry. Right at the back there is a paddock with a small herd of full sized deer. I presume they were sambar, the only signs said rusa, but that is the Malay word for deer. Actually it is not that bad, the walk from the Bird Park is through Botanic Gardens and parkland. I did see some nice birds, including a shikra and an Asian koel. The facility itself is over the top for a dozen deer, with elevated walkways and well maintained landscaping.
The article was about a visit Peter made over a decade ago - the link posted by vogelcommando is literally the same link as the one Peter Dickinson opened the thread with.