Geospiza is a genus of 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 Thraupidae family; all species of Geospiza are endemic to the Galápagos Islands

Galápagos Islands

The Galápagos Islands are an archipelago of volcanic islands distributed around the equator in the Pacific Ocean, west of continental Ecuador, of which they are a part.The Galápagos Islands and its surrounding waters form an Ecuadorian province, a national park, and a...

; together with related genera they are collectively known as Darwin's finches

Darwin's finches

Darwin's finches are a group of 14 or 15 species of passerine birds. It is still not clear which bird family they belong to, but they are not related to the true finches. They were first collected by Charles Darwin on the Galápagos Islands during the second voyage of the Beagle...

. Sometimes classified in the bunting and American sparrow family Emberizidae

Emberizidae

The Emberizidae are a large family of passerine birds. They are seed-eating birds with a distinctively shaped bill.In Europe, most species are called buntings. In North America, most of the species in this family are known as sparrows, but these birds are not closely related to the sparrows, the...

, more recent studies have shown it to belong in the tanager

Tanager

The tanagers comprise the bird family Thraupidae, in the order Passeriformes. The family has an American distribution.There were traditionally about 240 species of tanagers, but the taxonomic treatment of this family's members is currently in a state of flux...

 family.

It contains the following species:

• Large Cactus Finch (Geospiza conirostris)
• Sharp-beaked Ground Finch (Geospiza difficilis)
  • Vampire Finch
    Vampire Finch
    The Vampire Finch is a small bird native to the Galápagos Islands. It is a very distinct subspecies of the Sharp-beaked Ground Finch endemic to Wolf and Darwin Islands....
    
     (Geospiza difficilis septentrionalis)
• Medium Ground Finch (Geospiza fortis)
• Small Ground Finch (Geospiza fuliginosa)
• Large Ground Finch (Geospiza magnirostris)
• Common Cactus Finch (Geospiza scandens)