It is estimated that there are 352 species of vertebrate fauna (both aquatic and terrestrial) recorded within the Georges River Catchment, many of which have been listed under the NSW Threatened Species Conservation Act (1995). The diversity and richness of fauna varies considerably from the coastal areas, to the urban fringes, to the relative wilderness of some of the upstream areas of the catchment.

Some species of note that have been found in surveys include Koala, Green and Golden Bell Frog, Turquoise Parrot, Squirrel Glider, Eastern Horseshoe-bat, Glossy Black-Cockatoo, and Platypus.

A large number of endangered animals can be found within the Georges River catchment.
Below is a list of most of the threatened fauna.
Common Bent-wing Bat
Miniopterus schreibersii
Eastern Freetail-bat
Mormopterus norfolkensis
Eastern False Pipistrelle
Falsistrellus tasmaniensis
Greater Broad-nosed Bat
Scoteanax rueppellii
Grey-headed Flying Fox
Pteropus poliocephalus
Large-eared Pied Bat
Chalinolobus dwyeri
Large-footed Myotis
Myotis macropus
Yellow-bellied Sheath-tail-bat
Saccolaimus flaviventris
Australasian Bittern
Botaurus poiciloptilus
Barking Owl
Ninox connivens
Beach Stone-curlew
Esacus neglectus
Black-tailed Godwit
Limosa limosa
Broad-billed Sandpiper
Limicola falcinellus
Bush Stone-curlew
Burhinus grallarius
Glossy Black-Cockatoo
Calyptorhynchus lathami
Great Knot
Calidris tenuirostris
Greater Sand Plover
Charadrius leschenaultii
Little Tern
Sterna albifrons
Masked Owl
Tyto novaehollandiae
Pied Oystercatcher
Haematopus longirostris
Powerful owl
Ninox strenua
Regent Honeyeater
Xanthomyza phrygia
Sooty Owl
Tyto tenebricosa
Sooty Oystercatcher
Haematopus fuliginosus
Striated Field Wren
Calamanthus fuliginosus
Swift Parrot
Lathamus discolor
Turquoise Parrot
Neophema pulchella
Giant Burrowing Frog
Heleioporus australiacus
Green & Golden Bell Frog
Litoria aurea
Heath Frog
Litoria Littlejohni
Red-crowned Toadlet
Pseudophryne australis
Eastern Pygmy Possum
Cercartetus nanus
Phascolarctos cinereus
Squirrel Glider
Petaurus norfolcensis
Spotted-tailed Quoll
Dasyurus maculatus
Yellow-bellied Glider
Petaurus australis
Broad-headed Snake
Hoplocephalus bungaroides
Rosenberg's Goanna
Varanus rosenbergi

Related Information

Within NSW there are two pieces of legislation governing the listing of species' as endangered. The Commonwealth Environment Protection and Biodiversity Conservation Act 1999 and the NSW Biodiversity Conservation Act 2016. Additionally, the NSW Fisheries Act 1994 provides for the protection of aquatic habitats which includes Mangroves.