The mockingbirds that darwin collected on different islands in the galápagos belong to four subtly different species. this pattern of similar but distinct species on nearby islands is common around the world. why was the pattern important to darwin's thinking about the origin of species?
I think you mean the Finches. Each Finch has a beak that is very similar to other beaks on the other islands. This shows that they are related. Their beaks change so that they can live better in their environment. They all had a common ancestor.
