Simplify the following text for a Grade 10 native English-speaking person.
Original: Many species have developed special Faroese sub-species : Common Eider , European Starling , Winter Wren , Common Guillemot , and Black Guillemot .
Simplified: Many species of birds live sometimes in the islands , like : Eider , Starling , Wren , Guillemot , and Black Guillemot .