overhunting stable climate plentiful food supply abundant nesting sites
I gave my students this multiple choice question: The heath hen, an extinct small wild fowl, was a relative of the prairie chicken. Which of the following most likely caused extinction of the heath hen?

Only one answer is correct among these 4 choices:
- overhunting
- stable climate
- plentiful food supply
- abundant nesting sites

Could you tell me which one is correct?

overhunting