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Birds | Bristol Zoo.
Near the entrance is the aviary with the greater flamingos + redshank + egrets + turtle doves.
There are masked lovebirds in the aviary beside the children's playground in the midddle of the zoo, and the walkthrough bird house (Forest of Birds) is very close. This has some hornbills in aviaries as well as a fairly small indoor walkthrough with roulroul, pittas etc. Then you pass out through the outdoor walkthrough (which used to be called the Wallace Aviary), where the rainbow lorikeets are the main species.
The west and south sides of the zoo (turning right when you come out of the bird house) have a series of aviaries. Look out for Palawan peacock pheasants, Sumatran laughing thrushes and Meller's ducks. The new aviary which has a backing of rockwork, left from when it was a penguin pool, contains avocets and Asian glossy starlings among others. There are half a dozen aviaries along the southern boundary of the zoo, some of the species are duplicated, but look out for fruit pigeons. Next to them is the circular aviary which originally held birds of prey; it now has three sections and holds lilacine amazons and azure-winged magpies among others. Opposite are the paddocks for a pair of cassowaries.
Zona Brasil, entrance by the pygmy hippos and okapis, has two aviaries for red-tailed amazons and scarlet tanagers. Don't miss the jackass penguins, Inca terns and eiders in Seal and Penguin Coasts.
There are also pelicans on the lake in the middle of the zoo and keas in an old gorilla enclosure

next to the Asian lions.
I don't think I've missed anything. Hope this helps.
Alan