The Australian yellow white-eye usually lives in small flocks (2) (3), which keep in touch with quiet calls as they forage among trees and bushes (3). Flocks of this species can regularly be seen searching for insects among the foliage or probing flowers for nectar (2) (6). The Australian yellow white-eye feeds on a variety of insects and their larvae, with mosquitoes and midges often being particularly important in its diet. It also takes spiders, molluscs and other small invertebrates, as well as seeds, fruit pulp and nectar (2), which it is able to lick up with its brush-tipped tongue (3).
Breeding in this species is reported to mainly occur between October and March (2), or between December and February in parts of Western Australia, corresponding to the start of the wet season (6). In the Darwin region of the Northern Territory, the Australian yellow white-eye may breed in almost any month, although breeding activity is thought to peak between September and October (2).
The Australian yellow white-eye’s nest is a deep cup of grass, lined with fine roots and bound together with cobwebs, and often with pieces of bark on the outside (2) (3). The nest is built between two twigs (3), usually in the horizontal fork of a mangrove tree overhanging water (2).
The female Australian yellow white-eye typically lays 2 to 3 pale bluish-green or white eggs, which hatch after 9 to 12 days (2). Both the male and female of this species help to incubate the eggs (3). The Australian yellow white-eye chicks leave the nest at 10 to 11 days old (2), and may stay with the adult birds for a further 2 to 3 weeks (3).