Waxbil or Waxbill: How To spell?

The word Waxbil is misspelled against Waxbill, a noun meaning "Any one of numerous species of finchlike birds belonging to Estrelda and allied genera, native of Asia, Africa, and Australia. The bill is large, conical, and usually red in color, resembling sealing wax. Several of the species are often kept as cage birds."