quickly escaping predators. easily reaching flowers. staying in one place to drink nectar. keeping eggs warm.
I gave my students this multiple choice question: Hummingbirds can hover in the air and fly very quickly. This benefits the hummingbird in all of the following except

Only one answer is correct among these 4 choices:
- quickly escaping predators.
- easily reaching flowers.
- staying in one place to drink nectar.
- keeping eggs warm.

Could you tell me which one is correct?

keeping eggs warm.