The finches on the islands were different. Their beaks had different shapes. Beak shape was an adaptation. It helped the different finches get their food.
For example:
Green warbler‑finches have thin, sharp beaks. They use them to spear insects.
Medium ground finches have short, stubby beaks. They use them to eat seeds on the ground.
Common cactus finches have broad, curved beaks. They use them to nibble on plants.
medium tree finch
large tree finch
mangrove finch
woodpecker finch
green warbler‑finch
Cocos finch
small ground finch
medium ground finch
large ground finch
sharp‑beaked ground finch
common cactus finch
Española cactus finch
vegetarian finch
small tree finch
