a common roller, Eurystomus orientalis, of Asia and Australia, having on its wings a silvery spot the size of a dollar.
Origin of dollarbird
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a bird, Eurystomus orientalis, of S and SE Asia and Australia, with a round white spot on each wing: family Coraciidae (rollers), order Coraciiformes
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012