About the Medium Ground Finch
The medium ground finch 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.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
ID tip
Like the other members of its genus, the medium ground finch is strongly sexually dimorphic; the female's plumage is brown and streaky, while the male's is solid black, with white tips to the undertail coverts. The bird measures 12.5 cm (4.9 in) in length—which falls between the lengths of the small and large ground finches. The bill of this species is quite variable in size, though the length of the upper mandible is always greater than the depth of the bill at its base. The wing shape, on average, seems to change with ecological shifts.
Text from Wikipedia, licensed CC BY-SA 4.0.
Where the Medium Ground Finch lives
When to see the Medium Ground Finch
Peak activity in July · a resident species across most of its range
Easily confused with
Common Cactus FinchGeospiza scandensThe common cactus finch or small cactus finch is a species of bird in the Darwin's finch group of the tanager family Thraupidae.
Small Ground FinchGeospiza fuliginosaThe small ground finch is the smallest of the ground finches, measuring 11 cm (4.3 in) in length.
Large Ground FinchGeospiza magnirostrisThe large ground finch weighs about 27–39 g (0.95–1.38 oz), and its length ranges slightly 15–16 cm (5.9–6.3 in).
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