Eastern Yellow Robin
Eopsaltria australis
At 15 to 16 cm (6 in) in length and 15 to 28 g (0.03 to 0.06 lb), the eastern yellow robin is one of the larger Australasian robins, and one of the most easily observed. Pairs and small family parties establish a territory—sometimes year-round, sometimes for a season—and seem little disturbed by human presence. They appear not to migrate any great distance, but will make local movements with the seasons, particularly to higher and lower ground.
ID text from Wikipedia, CC BY-SA 4.0

White-breasted Robin
Eopsaltria georgiana
The white-breasted robin ranges between 14.5 and 17.0 cm (5+3⁄4 and 6+3⁄4 in) long, with a wingspan of 22–25 cm (8+3⁄4–9+3⁄4 in). The male weighs 20.5 g (0.72 oz), while the female is lighter at 16.5 g (0.58 oz). Males and females are similar in coloration, with blue-grey upperparts, paler eyebrows, and whitish underparts. The grey tail is tipped with white. Bills and feet are black in colour, while eyes are dark brown. Birds from the northern part of its range are smaller and darker grey in colour. Juveniles are brownish.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Eastern Yellow Robin and White-breasted Robin.