Wildlife living on zoo grounds is something I always carefully look for and record - getting more animals in a zoo visit feels like getting 'bang for the buck'. Below are some of the highlights I have come across. Most of these zoos are attached to some sort of greenspace (even some national parks). For example, Wildlife HQ on the Sunshine Coast has the advantage of being among small patches of subtropical rainforest so it attracts some unique species. Australia Zoo is a magnet for wildlife especially around the exotic animal enclosure and its sheer size. Ipswich Nature Centre is usually home to huge numbers of flying-foxes and possums. Some of the species have only been seen once at each zoo, some are seasonal and some are abundant.
Australia Zoo: Yellow-tailed Black-Cockatoo (nomadic but generally regular sightings), Azure Kingfisher, Forest Kingfisher, Sacred Kingfisher, Topknot Pigeon, Brown Cuckoo-Dove, Peaceful Dove, Bush Stone-Curlew, Pacific Baza (nested near elephants), Grey Goshawk, Channel-billed Cuckoo, Varied Triller, Rufous Fantail, Little Wattlebird, Lewin's Honeyeater, White-throated Honeyeater, White-cheeked Honeyeater, Scarlet Honeyeater, Spectacled Monarch, Eastern Yellow Robin (very common), Olive-backed Oriole, Green Catbird, Eastern Whipbird, Rufous Shrike-thrush, Golden Whistler, Leaden Flycatcher, Brown Thornbill, Lace Monitor, Carpet Python, Eastern Water Skink
Wildlife HQ: Wompoo Fruit-Dove, Green Catbird, Rufous Fantail, Eastern Yellow Robin, Large-billed Scrubwren, Russet-tailed Thrush, Spectacled Monarch, Fan-tailed Cuckoo, Richmond Birdwing (threatened butterfly species)
Darling Downs Zoo: Plumed Whistling-Duck, Red-rumped Parrot (the best location I have come across for them), White-throated Gerygone, Yellow-rumped Thornbill, Nankeen Kestrel, Black-shouldered Kite, Double-barred Finch, Eastern Bearded Dragon
Currumbin Wildlife Sanctuary: Pied Cormorant, Pied Stilt (once), Australian King-Parrot, Wandering and Plumed Whistling-Duck
Lone Pine Koala Sanctuary: White-headed Pigeon, Lewin's Honeyeater, Australian King-Parrot, Bush Stone-Curlew
Ipswich Nature Centre: Black Flying-Fox, Grey-headed Flying-Fox, Little Red Flying-Fox, Common Brushtail Possum, Little Friarbird, Bush Stone-Curlew
Dreamworld: Magpie Goose, Plumed Whistling-Duck, Carpet Python
Little Red Flying-Foxes and Common Brushtail Possum - Ipswich Nature Centre
Lace Monitor - Australia Zoo
Coastal Carpet Python - Dreamworld