The Scarlet Robin (Petroica boodang) is a striking member of the Australasian robin family, Petroicidae. This small, robust passerine is characterized by its large head and a vivid contrast in plumage between the sexes. Males are adorned with a black head, back, and tail, with a brilliant scarlet breast and a white belly, while females exhibit a more subdued palette with brown where the male is black and a paler red breast.
To identify the Scarlet Robin, look for the male's distinctive black and white wings, white forehead, and white rump, which contrast with the scarlet red breast. Females can be recognized by their brown plumage, buff belly, and the less vibrant red on their breast. Juveniles resemble females but lack the reddish wash on the breast.
The Scarlet Robin favours eucalyptus woodlands and forests and thrives in open habitats with grassy and shrubby understories up to 1000 meters above sea level. In winter, they may venture into more open environments, including urban areas.
Endemic to Australia, the Scarlet Robin is found near the coast from southern Queensland to central South Australia, as well as in Tasmania and southwest Western Australia.
This species is mostly sedentary, with some mainland populations making small local movements in autumn and winter.
A territorial and monogamous bird, the Scarlet Robin defends its nesting territories against others of its kind and the related Flame Robin. Nesting sites are chosen by both sexes, but only the female builds the nest. Clutch sizes range from one to four eggs, typically three, which are incubated solely by the female.
The Flame Robin is similar but can be distinguished by its different territorial and migratory behaviours, as well as slight variations in plumage.
The Scarlet Robin's diet consists primarily of arthropods, such as insects and spiders, adjusting its behaviour with the seasons—feeding on the ground in winter and snatching prey from bark and foliage in summer and spring.
The IUCN Red List classifies the Scarlet Robin as Least Concern, indicating a stable population without significant threats at present.