Yep, you are correct - I'm not sure which exhibit I was thinking of, but I got my wires crossed somewhere. The outdoor exhibit is not particularly large - although not bad per se, it's definitely the smallest of the macropod exhibits in that area.
A few more exhibit photos:
Australian Water Rat
I don't have any good photographs of this exhibit with the current inhabitants, but it is more or less the same as it was when I took the following photograph in 2017, at which time it contained Eastern Quoll - so it should provide a good impression of the exhibit overall.
Dingo
Australian Wetland Aviary
This aviary (located close to the Japanese Garden, uphill from the Philippine House) contains the following species; Sarus Crane, Black Swan, Straw-necked Ibis, Glossy Ibis, White-faced Heron, Magpie Goose, Plumed Whistling Duck, Maned Duck, Pacific Black Duck and Hardhead.
Along with these, there are of course many aviaries dotted around the collection - several of which contain species relevant for the purview of this challenge. Although it has been noted in the past that the aviaries throughout the collection have become a little crowded since the bulk transfer of a large portion of the former offshow bird collection into the onshow aviaries, this issue has rather reduced in the last year or so due to a combination of animals being transferred out of the collection or dying, the expansion of some existing aviaries, and the construction of at least a few new ones. As such, these aviaries are now rather higher quality in my opinion than had previously been the case..... and of course, the selection of species within are nothing to be sniffed at.
Australian Aviary Complex
These aviaries are located near the main Australasian area, and contain the following species; note that some of these photographs are from periods when the species list was not the same:
Common Bronzewing, Eastern Rosella, Superb Parrot, Bush Thick-knee, Wonga Pigeon, Masked Lapwing, Australian Ringneck, Bar-shouldered Dove and Red-winged Parrot.
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Green Rosella, Chestnut Teal, Australian Shoveler and New Zealand Scaup
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Long-nosed Potoroo, White-necked Magpie, Blue-faced Honeyeater
Australian Aviaries in Dinopark
Tawny Frogmouth, Western Rosella and Mulga Parrot
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Bush Thick-knee, Masked Lapwing, Brush Bronzewing, Diamond Dove, Peaceful Dove, Bourke's Parrot, Scarlet-chested Parrot, Hooded Parrot and Red-winged Parrot
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Swift Parrot, Wild Budgerigar, Plum-headed Finch, Blue-faced Parrotfinch, Red-browed Finch, Painted Finch, Diamond Firetail and Black-throated Finch
Moluccan and Lesser Sundaic Aviary close to Rhino House
Beautiful Fruit Dove, Barred Dove, Timor Zebra Finch, Dusky Munia, Scaly-breasted Munia, Great-billed Mannakin, Black-faced Munia and White-headed Munia
New Caledonian Aviary
Kagu and Horned Parakeet
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Some further general shots of aviaries within these areas of the zoo to give an idea of design/size/etc; I think these two both contain Sulawesi species currently, so given the redefinition of the category has cut this island out from consideration I won't bother listing species.
you've still reminded me of several marsupial species I'd omitted to mention, and hence helped to clarify the scope of the collection.
