Medium Ground-Finch
Geospiza fortis

The Medium Ground-Finch (Geospiza fortis) is one of the "Darwin Finches" endemic to the Galapagos Islands. The first 2 shots on this page were digital captures taken in July, 2003. The first shot on Santa Maria and the next shot on Santa Cruz Island with a Canon EOS 10D and an EF 70-200 mm F/2.8 L IS lens and 2X extender. Telling Small, Medium, and Large Ground Finches apart has to do with the bill structure.

Darwin's finches (also known as the Galápagos Finches or as Geospizinae) are a group of 15 species of Passerine birds, now placed in the tanager family rather than the true finch family. They were first collected by Charles Darwin on the Galápagos Islands during the second voyage of the Beagle. Thirteen are found on the Galápagos Islands and one on Cocos Island. The birds are all about the same size (10–20 cm). The most important differences between species are in the size and shape of their beaks, and the beaks are highly adapted to different food sources.

The next 6 images below were taken in July, 2007, with a Canon EOS 1D Mark III and EF 100-400mm F/4.5-5.6 L IS lens. The first 4 shots show a male while the bottom 2 shots are of females.
The next three shots of Medium Ground-Finch were taken on Santa Cruz Island in the Galapagos in August, 2010, with a Canon EOS 1D Mark IV and a Sigma 50-500mm lens.