Medium Ground-Finch
NameMedium Ground-Finch
Common NameMedium Ground-Finch
Scientific NameGeospiza fortis
FamilyThraupidae
Wingspan (cm)22
Length (cm)13.5
Weight (g)22.5
Plumage DetailsAdult males are uniformly dull black with a black bill. Females and immatures have streaky brown upperparts, paler underparts, and a buffy wash, often with a paler, sometimes orange-tinged bill.
Vocalization / CallVocalizations include a simple, unmusical song consisting of repeated notes, often described as 'chup-chup-chup' or 'twee-twee-twee'. Calls are typically sharp 'chip' notes.
Primary Dietgranivore
Primary Habitatsforest, grassland
Conservation Statusleast-concern
Geographic RangeEndemic to the Galápagos Islands, found on most of the larger islands including Santa Cruz, San Cristóbal, Isabela, Fernandina, Santiago, and Pinta.
Identifying FeaturesMedium-sized, stout conical bill, Males entirely dull black, Females streaky brown, Ground-foraging behavior, Found only in the Galápagos Islands
Description
The Medium Ground-Finch is a medium-sized Darwin's finch characterized by its stout, conical bill adapted for cracking seeds. Males are entirely black, while females and juveniles exhibit streaky brown plumage. This species primarily forages on the ground in arid environments of the Galápagos Islands.
