The birdlife spotted along Back Creek was quite diverse. The 22 species recorded fell into five ecologically distinct groups. Amongst the carnivores were the grey butcherbird (Cracticus torquatus) and the laughing kookaburra (Dacelo novaeguineae). These two species often feed on insects, but also feed on small lizards and other vertebrates. To our surprise, a collared sparrowhawk (Accipiter cirrocephalus) was also spotted. This species feeds mainly on small birds, which shelter in green spaces such as Back Creek. The nocturnal tawny frogmouth (Podargus strigoides) were also observed.
Several insectivorous passerine species were recorded, including brown thornbills (Acanthiza pusilla), willy wagtails (Rhipidura leucophrys), grey fantails (Rhipidura abiscapa), silvereyes (Zosterops lateralis) and white-browed scrubwrens (Sericornis frontalis). These species are attracted by the food sources provided by urban parks, and require shrubs and bushes for shelter in order to hide from predators.
Several species important for pollen dispersal were recorded, including both parrots and honeyeaters. Ecologically-important species such as rainbow lorikeets (Trichyglossis haematodus) and galahs (Cacatua roseicapilla) were seen frequently. Honeyeaters observed included eastern spinebills (Acanthorhychus tenuirostris), red wattlebirds (Anthchaera carunculata) and noisy miners (Manorina melanocephala). These species feed on the nectar produced by flowers, and in doing so help to disperse pollen and therefore influence the reproduction of various plant species.
Other species observed include the Pacific black duck, and omnivorous corvids such as the Australian magpie (Gymnorhina tibicen), the little raven (Curvus mellori) and the pied currawong (Strepera graculina). Several invasive species, such as spotted turtledoves (Streptopelia chinensis), Indian mynas (Acridotheres tristis), common starlings (Sturnus vulgaris) and common blackbirds (Turdus merula) were also observed.