About Geospiza acutirostris Ridgway, 1894
The Genovesa ground finch, with the scientific name Geospiza acutirostris, is a small bird that is native to the Galápagos Islands. It was previously treated as a subspecies of the sharp-beaked ground finch (Geospiza difficilis), and is endemic to Genovesa Island. The International Ornithologists' Union has recognized it as a separate full species, while other taxonomic authorities still consider it the same species as Geospiza difficilis. A 2017 whole-genome phylogenetic study conducted by Lamichhaney et al. shows that G. acutirostris is genetically very distant from G. difficilis. This study also found that G. difficilis does not group with other members of the genus Geospiza in the phylogenetic tree.
