There are also Caribbean Flamingos, Inca terns and Black-necked Stilts in the aviary. At least one of the stilts is actually in James's picture, under the trees. The Flamingo's are usually gathered nearer the bigger lake, outside the picture to the right.
Other long-term residents are e.g. Chiloe wigeon and Inca tern. Then there are the randoms that have been displayed periodically, e.g. Roseate spoonbill and Orinoco goose.