The north bank of Regent's Canal, east of the East Footbridge, has been the site of greenhouses since about 1920; standing buildings are of 1963 and later. The Zoo's Gardening Department propagates plants here, including many exotic species, for the enclosures and the public spaces of the gardens. The greenhouses have been rebuilt with a brick stores range to the north.
There is a small refreshment kiosk built to serve the South Gate, an entrance subsequently closed then cleared in 1985. Built 1976, John Toovey, architect.
To the north of Three Island Pond there is an irregularly shaped grassed enclosure. Formed in 1905 for the display of squirrels, but soon given over to prairie dogs, it is about 55 ft (17 m) across. A small budgerigar aviary stood on the site before it was again used for squirrels and then abandoned.
The Flamingo Pool was formed on the site of a wolverine, jackal and fox enclosure. Latterly used by pelicans, it has now reverted to its original use. Built 1965. Relandscaped 1992 with funding from BOC Limited.
