Photo 235895, (c) greglasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley

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Attribution © greglasley
Cc by nc small some rights reserved
Uploaded by greglasley greglasley
Source iNaturalist.org
Original http://www.inaturalist.org/photos/235895
Associated observations

Photos / Sounds

What

Large Ground-Finch Geospiza magnirostris

Observer

greglasley

Date

August 22, 2010

Description

Large Ground-Finch
Geospiza magnirostris
Puerto Ayora,
Santa Cruz Island,
Galapagos,
Ecuador
22 August 2010

1st shot shows a mature male. 2nd shot shows a younger male or female.

Following from Wikipedia. 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 term Darwin's Finches was first applied by Percy Lowe in 1936, and popularised in 1947 by David Lack in his book Darwin's Finches.[1][2]
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 birds are all dull-colored.

Sizes