is name given to two members of the Honeyeater
family, both in the genus Acanthorhynchus
, the name of which means literally "spine bill". They are around 15 centimetres in length, and are coloured black, white and chestnut, with a long, downcurved bill. They are native to Australia
, with one species in the east and one in the west. They feed on nectar as well as insects, and live mainly in forests, gardens, and other shrubbery habitat.
A molecular study has shown that the two spinebills are a sister grouping to all other honeyeaters, that is, they diverged earlier than all other species.
Birds in Backyards: The Eastern Spinebill
The Eastern Spinebill in the Australian Birds Image Database