Image via Macaulay Library
Medium Ground-Finch
- Scientific name
- Geospiza fortis
- Family
- Thraupidae
- Conservation status
- Least concern
- Habitat
- Grassland
- Wing shape
- Short
- Tail shape
- Rounded
Where it came from
The Medium Ground-Finch, Geospiza fortis, is one of the iconic group of species collectively known as Darwin's finches, native to the Galápagos Islands. These birds gained scientific significance following Charles Darwin's 1835 visit to the archipelago, as their observed variations in beak morphology became a foundational piece of evidence for the theory of natural selection. Evolutionarily, the species occupies a distinct ecological niche, having adapted to consume a variety of seeds through its robust, versatile beak structure.
The physical design of the Medium Ground-Finch reflects an evolutionary specialization for life in a variable environment. Its short, rounded wings allow for efficient, maneuverable flight in the dense scrub habitats of the islands, while its rounded tail aids in low-altitude navigation. Biologists Peter and Rosemary Grant conducted long-term studies on these birds, famously documenting how rapid shifts in beak size can occur within only a few generations in response to changing climatic conditions and food availability.
Generated by Pi, the collecto.rs collecting companion
Who's collecting this
Real birds collectors on collecto.rs who have this in their public collection.
About Medium Ground-Finch
Medium Ground-Finch is a bird in the Birdwatching catalog on collecto.rs. Catalog data is sourced from eBird. No public birds collectors track this one yet — adding yours would make you the first on collecto.rs.
How many collectors track Medium Ground-Finch on collecto.rs?
Medium Ground-Finch doesn't have any public collectors on collecto.rs yet. Sign up to add it and become the first.
Can I track my own copy of Medium Ground-Finch?
Yes. collecto.rs is free — sign up to log your bird, upload photos, record condition, edition, and acquisition cost, and connect with other birdwatching collectors. Your collection stays private by default.
Where does the Medium Ground-Finch catalog entry come from?
The catalog entry for Medium Ground-Finch is sourced from eBird. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.
Is collecto.rs birds tracking free?
Yes. Tracking your birds is free — no paid tier required to catalog items, upload photos, or share your collection.
Track every bird you own
Free. Fun. Collection photos, notes, organization, value tracking, friends — all in one place.
Sign up free
