Thai National Parks

Birds of Thailand

Species of Thailand

Dollarbird

Thai: นกตะขาบดง, nok takhap dong

Binomial name: Eurystomus orientalis, Carolus Linnaeus, 1766

The dollarbird (Eurystomus orientalis), also known as the Oriental dollarbird or dollar roller, is a bird of the roller family, so named because of the distinctive blue coin-shaped spots on its wings. It can be found in south-west Pacific and east Asia from northern Australia to the Japan archipelago and India.

Description

It has a length of up to 30 cm. It is basically dark brown but this is heavily washed with a bluish-green sheen on the back and wing coverts. Its belly and undertail coverts are light coloured, and it has glossy bright blue colouring on its throat and undertail. Its flight feathers are a darker blue. Its bill is short and wide and in mature animals is coloured orange-red with a black tip. It has very light blue patches on the outer parts of its wings which are highly visible in flight and for which it is named. The females are slightly duller than the males but the two are overall very similar. Immature birds are much duller than the adults and do not have the blue colouring on their throats. They also have brown bills and feet instead of the red of the adults.

Range and habits

It is most commonly seen as a single bird with a distinctive upright silhouette on a bare branch high in a tree, from which it hawks for insects, returning to the same perch after a few seconds.

The birds breed in northern and eastern Australia between the months of September and March or April. The birds prefer open wooded areas with hollow-bearing trees to build nests in. They spend winters in New Guinea and nearby islands.

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Scientific classification

Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Coraciiformes
Family
Coraciidae
Genus
Eurystomus
Species
Eurystomus orientalis

Common names

  • Thai: นกตะขาบดง, nok takhap dong

Synonyms

  • Eurystomus solomonensis

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Distribution map of Dollarbird, Eurystomus orientalis in Thailand

Range map of Eurystomus orientalis in Thailand

Important note; our range maps are based on limited data we have collected. The data is not necessarily accurate or complete.

Special thanks to Ton Smits, Parinya Pawangkhanant, Ian Dugdale and many others for their contribution for range data.

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