This small ground finch lives on Darwin and Wolf Islands in the northwestern Galápagos. It is known for pecking at the bases of seabirds' feathers and drinking blood.
It is a small ground finch with a sharp-pointed bill.
Its main foods are seeds and insects. When food is scarce, it may peck at the bases of boobies' feathers to drink blood; egg-eating was also recorded on Wolf Island.
An extinction-risk assessment has not been added yet.