There is strong evidence that two species of cliff-dwelling birds have nested in the same environment and fed in the same water for thousands of years, with each having stable population sizes. Based on this information, which of the following statements is the best conclusion?
A. The two birds compete for food.
B. One species will displace the other.
C. The two birds have different ecological niches that allow coexistence.
D. One species eats a more diverse diet than the other does.

C.

Explanation:

Based on the scenario being described within the question it can be said that the best conclusion would be that the two birds have different ecological niches that allow coexistence. Meaning that each of them have a specific match to a different environmental condition that does not interfere with their competitors niche, thus allowing them to not have to compete with one another in order to survive.

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