Final answer:
B. Social learning
The intermediate would learn its song through Social learning, where behaviors are learned by observing and mimicking others, and is related to cultural evolution.
Step-by-step explanation:
The intermediate would learn its song from which neighboring species it had through Social learning. Social learning is the process by which animals, including birds, learn behaviors from observing and mimicking the actions of others. This concept is closely related to cultural evolution in which behaviors can be transmitted across generations within a species. An example of social learning is when each new generation learns migration behavior by observing older generations and mimicking their behavior patterns. Unlike habituation, which is a form of non-associative learning where an animal stops responding to a stimulus after repeated exposure, social learning involves actively acquiring new behaviors from others.