The the behavior observed in starlings where they produce an average of five eggs in each clutch is an example of behavioral adaptation.
Adaptation refers to the special features or structures possessed by organisms which enhances their chances of survival in their environment.
The adaptation can either be behavioral or structural.
In the case of the starlings, due to environmental pressures, they have learned to lay an average of five eggs.
Therefore, the behavior observed in starlings is an example of behavioral adaptation.
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