User blog:StaraptorEmpoleon/Yellow-throated Vireo and Pine Warbler: convergent evolution?

I was noticing an illustrations in one of my books... how the Yellow-throated Vireo and Pine Warbler look remarkably similar! But why might this be? I have a theory, but I have no idea if it's true, convergent evolution.

What is it? It is when two or more species evolve in separate areas and look similar to each other. There are severl examples, including meadowlarks and longclaws, penguins and auks, etc.