I'm just doing a quick Zwischenfazit of the birds and mammals I've seen in the wild in what is now just over one year of me being in Australia.
Based on The Australian Bird Guide by Peter Menkhorst et al. and listing only species with distribution maps therein; with newer splits, vagrants, other additional species as +x in []
Birds
Casuariiformes
Cassowaries (1/1)
Emus (1/1)
Anseriformes
Magpie Goose (1/1)
Ducks, Geese, Swans (19/21)
Galliformes
Megapodes (3/3)
Guineafowl (-/-) [+1 Helmeted Guineafowl (no distribution map)]
Pheasants, Fowl and allies (3/3)
Sphenisciformes
Penguins (1/1)
Procellariiformes
Austral Storm-petrels (0/5)
Albatrosses (4/13)
Petrels, Shearwaters (5/36) [+1 Grey-faced Petrel (split from Great-winged Petrel)]
Northern Storm-petrels (0/2)
Diving-petrels (0/1)
Podicipediformes
Grebes (3/3)
Phaethontiformes
Tropicbirds (0/2)
Ciconiiformes
Storks (1/1)
Pelecaniformes
Ibises, Spoonbills (5/5)
Herons, Bitterns (11/14)
Pelicans (1/1)
Suliformes
Frigatebirds (2/2)
Gannets, Boobies (2/4)
Cormorants, Shags (5/5)
Darters (1/1)
Accipitriformes
Ospreys (1/1)
Kites, Hawks, Eagles (15/17)
Otidiformes
Bustards (1/1)
Gruiformes
Rails, Crakes, Coots (10/14)
Cranes (2/2)
Charadriiformes
Button-quails (2/7)
Stone-curlews (1/2)
Oystercatchers (2/2)
Stilts, Avocets (3/3)
Plovers (12/13)
Painted-snipes (1/1)
Jacanas (1/1)
Plains-wanderer (1/1)
Sandpipers, Snipes (20/28)
Pratincoles, Coursers (2/2)
Gulls, Terns, Skimmers (13/23) [+1 Aleutian Tern]
Skuas, Jaegers (1/5)
Columbiformes
Pigeons, Doves (19/25)
Cuculiformes
Cuckoos (9/12)
Strigiformes
Barn Owls (5/5)
Owls (3/5)
Caprimulgiformes
Frogmouths (3/3)
Nightjars (2/3)
Apodiformes
Owlet-nightjars (1/1)
Swifts (3/3)
Coraciiformes
Rollers (1/1)
Kingfishers (10/10)
Bee-eaters (1/1)
Falconiformes
Falcons, Caracaras (4/6)
Psittaciformes
Cockatoos (12/14)
Parrots (25/41)
Passeriformes
Pittas (1/3)
Lyrebirds (1/2)
Scrubbirds (2/2)
Bowerbirds (10/10) [+1 Black-eared Catbird (split from Spotted Catbird)]
Australasian Treecreepers (5/6)
Australasian Wrens (12/23) [+3 Purple-backed Fairy-wren (split from Variegated Fairy-wren) and Pilbara and Sandhill Grasswrens (split from Striated Grasswren)]
Honeyeaters (60/75)
Bristlebirds (3/3)
Pardalotes (2/4)
Australasian Warblers (31/40)
Australasian Babblers (2/4)
Logrunners (2/2)
Whipbirds, Quail-thrushes (5/11)
Boatbills (1/1)
Woodswallows, Butcherbirds and allies (13/15)
Cuckoo-shrikes, Trillers (7/7)
Sittellas (1/1)
Australo-Papuan Bellbirds (1/1)
Whistlers and allies (11/14) [+1 if splitting Crested Shrike-tit into northern (not seen), eastern and western]
Figbirds, Orioles (3/3)
Drongos (1/1)
Fantails (5/6)
Monarchs (12/13)
Crows, Jays (4/5)
Australian Mudnesters (2/2)
Birds-of-paradise (4/4)
Australasian Robins (15/22)
Larks (1/2)
Bulbuls (0/1)
Swallows, Martins (3/5)
Reed-warblers and allies (1/1)
Grassbirds and allies (4/5)
Cisticolas and allies (1/2)
White-eyes (2/3)
Starlings (3/3)
Thrushes (3/4)
Flowerpeckers (1/1)
Sunbirds (1/1)
Old World Sparrows (1/2)
Waxbills, Munias and allies (12/19)
Wagtails, Pipits (1/2)
Finches (1/2)
Total: (506/712) [+8]