The green catbird (Ailuroedus crassirostris) is a species of bowerbird found in subtropical forests along the east coast of Australia, from southeastern Queensland to southern New South Wales.

Similar to other male bower birds, he will attempt to attract females by displaying colourful fruits, flowers and leaves in his beak.

[2] Although usually seen individually, green catbirds typically socialize in pairs but can be seen in groups of 3–5 at the end of breeding season when their young are still somewhat dependent on their parents.

Amongst these groups of green catbirds other species that can be found during these communal feeds are satin bowerbirds, regent bowerbirds and fig birds[5] Green catbirds will constantly spend their time seeking out food sources both inside and outside their territories and fiercely defend food sources within their territory from other males and females.

They will be heard regularly calling but this is most common during breeding season, when predators are in the vicinity of nests and when engaging other birds in territorial battles.

[2] Green catbirds are classified as omnivorous but are mainly frugivorous (native, introduced or cultivated), feeding on figs and a variety of vegetable matter such as buds, shoots, flowers and seeds.

Their diet is also supplemented with insects such as grasshoppers, cicadas, beetles, millipedes and mites and small vertebrates such as tree frogs and hatchlings of smaller birds that inhabit their area.

Although it is widespread and common in its favoured habitat, ongoing clearing of rainforest and paperbark swamps for development is likely to continue to threaten the green catbird in the future.