Answer:
The same author is the correct answer
"The caged Bird" is a poem whereas "I know why the caged Bird sings" is a book. however, they are written by the same person (Maya Angelou)
I remember them switching houses and Country Mouse was like, "City's too loud for me!" and City Mouse was like, "Country's too quiet for me" so they went back to their own houses. I myself prefer the quiet country.