Galapagos islands

Comparison of Beak use in Darwin’s Finches.  Stippled illustration showing singing, feeding, and preening.

Beak comparison in Darwin’s finches showing use feeding, singing, and preening.  Line drawing.

Singing Darwin’s Finch Geospiza fulginosa showing beak in use.  

Singing Darwins Finch Geospiza fuliginosa.  Line drawing showing Galapagos finch and beak use.

Bird preening Darwins Finch Geospiza magnirostris line drawing showing the beak in use in parasite removal

Preening Darwins Finch Geospiza magnirostris line drawing showing the beak in use in parasite removal

Darwins Finch Geospiza magnirostris with Tribulus seed.  Stippled illustration showing beak adaptability.

Darwin’s Finch Geospiza magnirostris with Tribulus seed (line drawing)