slender-billed greenfinch

plural slender-billed greenfinches

1. Chloris aurelioi, an extinct species of finch closely related to the European greenfinch (Chloris chloris), known only from fossil remains in Tenerife in the Canary Islands.

   Analysis of bones discovered in caves on the islands has revealed the former presence of additional endemic species […] These include the Long-legged Bunting and Slender-billed Greenfinch of Tenerife, both of which were essentially flightless and therefore easy prey for introduced predators.

   2018 May 15, John Bowler, Wildlife of Madeira and the Canary Islands: A Photographic Field Guide to Birds, Mammals, Reptiles, Amphibians, Butterflies and Dragonflies, Princeton University Press, →ISBN, page 18