The Corsican Finch is a bird

Bird

Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

 in the finch

Finch

The true finches are passerine birds in the family Fringillidae. They are predominantly seed-eating songbirds. Most are native to the Northern Hemisphere, but one subfamily is endemic to the Neotropics, one to the Hawaiian Islands, and one subfamily – monotypic at genus level – is found...

 family, Fringillidae.

It was formerly regarded a subspecies

Subspecies

Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...

 of the Citril Finch

Citril Finch

The Citril Finch is a small songbird, a member of the true finch family Fringillidae. For a long time, this cardueline finch was placed in the genus Serinus, but it is apparently very closely related to the European Goldfinch .This bird is a resident breeder in the mountains of southwestern Europe...

, but it differs in morphology

Morphology (biology)

In biology, morphology is a branch of bioscience dealing with the study of the form and structure of organisms and their specific structural features....

 and vocalizations (Cramp & Perrins, 1994, Förschler & Kalko, 2007) as well as mtDNA sequence

DNA sequence

The sequence or primary structure of a nucleic acid is the composition of atoms that make up the nucleic acid and the chemical bonds that bond those atoms. Because nucleic acids, such as DNA and RNA, are unbranched polymers, this specification is equivalent to specifying the sequence of...

 (Sangster, 2000, contra Pasquet & Thibault, 1997, Förschler et al. 2009) and they are now considered distinct species (Sangster et al., 2002, Förschler et al. 2009). Formerly, both were placed in the genus Serinus, but they appear to be close relatives of the European Goldfinch

European Goldfinch

The European Goldfinch or Goldfinch is a small passerine bird in the finch family.-Habitat and range:The goldfinch breeds across Europe, North Africa, and western and central Asia, in open, partially wooded lowlands. It is resident in the milder west of its range, but migrates from colder regions...

 (Arnaiz-Villena et al., 1998, contra van den Elzen & Khoury, 1999).

It is found in Corsica

Corsica

Corsica is an island in the Mediterranean Sea. It is located west of Italy, southeast of the French mainland, and north of the island of Sardinia....

, Sardinia

Sardinia

Sardinia is the second-largest island in the Mediterranean Sea . It is an autonomous region of Italy, and the nearest land masses are the French island of Corsica, the Italian Peninsula, Sicily, Tunisia and the Spanish Balearic Islands.The name Sardinia is from the pre-Roman noun *sard[],...

 and on the Italian islands of Elba

Elba

Elba is a Mediterranean island in Tuscany, Italy, from the coastal town of Piombino. The largest island of the Tuscan Archipelago, Elba is also part of the National Park of the Tuscan Archipelago and the third largest island in Italy after Sicily and Sardinia...

, Capraia

Capraia

Capraia, called Capraria in ancient times, is an island of Italy, part of the Tuscan Archipelago, off the northwest coast; it is also a comune belonging to the Province of Livorno. It is 62 km from the city of Livorno by sea, and 32 km northwest of the island of Elba; it is slightly...

 and Gorgona

Gorgona, Italy

Gorgona is the northernmost island in the Tuscan Archipelago, a group of islands off the west coast of Italy. Between Corsica and Livorno, this diminutive island has been valued most for its wildlife, especially marine birds, and its isolation. The latter quality resulted in the foundation of...

.

It has dark-streaked brown upperparts, and brighter yellow underparts than the Citril Finch.