Each call exchange requires that it replaces an existing call.
Ibis
Male Austrailian White Ibis (Threskiornis molucca)
Female Austrailian White Ibis (Threskiornis molucca)
Geese
Canada Goose (Branta canadensis) – 4 variants
Greater White Fronted Goose (Anser albifrons)
Gosling (Branta canadensis)
Grey Lag Goose (Anatidae)
Waders
Oystercatcher (Haematopus ostralegus)
Lapwing (Vanellus vanellus)
Lapwing Peewit (Vanellus vanellus)
Great Blue Heron (Ardea Herodias) 2 variants
Golden Plover (Pluvialis apricaria)
Killdeer (Charadrius vociferus)
Stone Curlew (Burhinus oedicnemus)
Long Billed Curlew (Numenius americanus)
Gulls
Herring gull (Larus argentatus)
Yellow-legged gull (Larus michahellis)
Ring-billed gull (Larus delawarensis)
Common gull (Larus canus)
Silver gull (Larus novaehollandiae)
Black-headed gull (Larus ridibundus)
Pigeon
Feral Pigeon (Columba livia)
Perching Birds
House sparrow (Passer domesticus)
Blackbird (Turdus merula)
Song thrush (Turdus philomelos)
Yellow-headed blackbird (Xanthocephalus xanthocephalus)
Red-winged blackbird (Agelaius phoeniceus) – Female and Immature variants
European starling (Sturnus vulgaris)
Black-collared starling (Sturnus nigricollis)
Crested myna (Acridotheres cristatellus)
Myna (Acridotheres Tristis)
Immature Red Winged Blackbird (Agelaius Phoeniceus)
Corvids
Rook (Corvus frugilegus)
Carrion crow (Corvus corone) – 2 variants
Jackdaw (Corvus monedula)
Magpie (Pica pica)
Jay (Garrulus glandarius)
Blue Jay (Cyanocitta cristata)
Sea Birds
Great Skua (Catharacta Skua)
Pelagic Cormorant (Phalacrocorax pelagicus)
Artic Tern (Sterna paradisaea)
Double Crested Cormorant (Phalocrocorax auritus)
Birds of Prey
Kestrel (Falco tinnunculus)
American Kestrel (Falco sparverius)
Birds of Prey – Combination
Hawk
Falcon (Falconidae) 2 variants
Eagle (Aquila chrysaetos)
Northern Goshawk (Accipiter gentillis)
Other
Flamingo (Phoenicoparrus andinus)
Mallard (Anas platyrhynchos)
Novel Sound (Whizz bang)
Sand Martins (Riparia riparia)
Grey Partridge (Perdix perdix)