draining a spring-fed pond plowing and planting meadows destroying all dead trees and stumps building a road around a small forest
I gave my students this multiple choice question: Which would most likely cause a decrease in the number of woodpeckers in an ecosystem?

Only one answer is correct among these 4 choices:
- draining a spring-fed pond
- plowing and planting meadows
- destroying all dead trees and stumps
- building a road around a small forest

Could you tell me which one is correct?

destroying all dead trees and stumps