Dollarbird

The Oriental dollarbird is a bird of the roller family, named for the coin-shaped pale blue or white spots on its wings. It ranges from Australia to Korea, Japan and India. It is 27–32 cm long and dark brown with a heavy bluish-green sheen on the back and wing coverts. Ten subspecies are recognised (Wikipedia, general species account). The Oriental dollarbird (Eurystomus orientalis) is a bird of the roller family, so named because of the distinctive pale blue or white, coin-shaped spots on its wings. (Wikipedia, general species account).

A 2018 study found the azure dollarbird of the North Moluccas nested within a clade of Oriental dollarbird subspecies (Wikipedia, general species account). It can be found from Australia to Korea, Japan and India. The type locality is the island of Java in Indonesia. A molecular phylogenetic study published in 2018 found that the azure dollarbird (Eurystomus azureus) of the North Moluccas was nested in a clade containing subspecies of the Oriental dollarbird. (Wikipedia, general species account).