Medium Ground-Finch
Geospiza fortis
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyThraupidae (Tanagers and Allies)
- GenusGeospiza (Ground-Finches and Cactus-Finches)
- SpeciesGeospiza fortis (Medium Ground-Finch)
The medium ground finch (Geospiza fortis) is a species of bird in the family Thraupidae. It is endemic to the Galápagos Islands. Its primary natural habitat is tropical shrubland. One of Darwin's finches, the species was the first which scientists have observed evolving in real-time. Many studies and research have been conducted on medium ground finches: there are the most famous studies conducted by Charles Darwin and more recent studies conducted in relation to the changes revolving around the medium ground finches due to natural selection. Due to an increase in urbanization on the Galápagos Islands, droughts and climate change, character displacement, changes in the finch's habitat and range, inbreeding and nesting, parasites, and viruses, medium ground finches have gone through changes. Wikipedia →
40–50% of wildlife watchers report a Medium Ground-Finch sighting in Galápagos Islands, based on 3,380 days of visitor records from GBIF citizen-science data.
Closest Relatives at Galápagos Islands
Small Ground-Finch
Geospiza fuliginosa
Common Cactus-Finch
Geospiza scandens
Large Ground-Finch
Geospiza magnirostris
Española Cactus-Finch
Geospiza conirostris
Genovesa Cactus-Finch
Geospiza propinqua
Genovesa Ground-Finch
Geospiza acutirostris
Vampire Ground-Finch
Geospiza septentrionalis
Sharp-beaked Ground-Finch
Geospiza difficilis
Small Tree-Finch
Camarhynchus parvulus
Grey Warbler-Finch
Certhidea fusca
Woodpecker Finch
Camarhynchus pallidus
Green Warbler-Finch
Certhidea olivacea
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Galápagos Islands | 🇪🇨 Ecuador |
More parks will be added in future updates.
Quick answers
What are the chances of seeing a Medium Ground-Finch in Galápagos Islands?
About 47% of wildlife watchers report a Medium Ground-Finch sighting in Galápagos Islands, based on 3,380 days of visitor records from GBIF citizen-science data.
When is the best time to see Medium Ground-Finch in Galápagos Islands?
October has the highest sighting rate for Medium Ground-Finch in Galápagos Islands in our monthly data.