Currently accepted species dispersal of the finches of the Galapagos Islands:
Ancestral seed-eating
ground finch
/ | \
/ | \
/ | \
Tree Finches Ground Finches Warbler-Like
(Genus Camarhynchus) / (Genus Geospiza) \
/ | \
/ | \
/ | \
/ | \------Certhidea Olivacea
Vegetarian-----------/ | \
/ / | \-----Pinaroloxias Inornata
/ / |
/ / |---G. Difficilis
C. Crassirostris / |
Insectivorous /|
/ / |
/---C. parvulus / |
/ / Cactus Feeding
/ / \
/----C. pauper / \
/ / \----G. Scandens
/ / \
/ /\ \
/-----C. psittacula / \ \---G. Conirostris
/ / \--G. fortis
/ /\
/ / \
/ / \
/-----C. heliobates /\ \--G. fuliginosa
/ \
/ \
/ \
/-----Woodpecker-Like \--G. magnirostris
\
\
\----C. pallidus
ASCII-Converted from Strickberger's Evolution. | 
