In the vicinity of Bayside, first contact:
AEC (Animal Emergency Centre, formerly Southern Animal Referral Centre)248 Wickham Rd, Highett VIC 3190 phone 03 9532 5261. For injured possums or other wildlife.
Bayside Duckling Orphanage Animal Rescue Cheltenham. For ducks and ducklings.
Let Companion Birds Fly Paris Yves - Mornington Peninsula - phone 0413 530 419. For companion/pet birds, but can refer wildlife birds to registered wildlife carers. Provides free bird behaviour advice.
Rob and Prue Sinclair Hampton phone 0401 555 901 8am - 8pm. For possums in need of care, but not injured.
Victorian Department of Environment, Land, Water and Planning (DELWP) list of animal rescue organizations
Australian Fauna Care lists wildlife care groups across Australia.
Basic First Aid
Wildcare has good information on what to do, and what not to do, when you encounter an injured animal, as well as more specific information for different species. They are based in southeast Queensland.