Why do white-crowned sparrows in Berkeley, California sing slightly different songs than white-crowned sparrows just south of Berkeley, in Sunset Beach?

Question

Quizplus · Accepted Answer

White-crowned sparrows learn their songs from the specific dialect they hear during the critical period of their development. The dialects can vary based on geographic location, and therefore, the sparrows in Berkeley have learned a slightly different song than those in Sunset Beach due to the different dialects they were exposed to. This means that white-crowned sparrows have the ability to learn and adapt to different songs depending on their environment.

Why Do White-Crowned Sparrows in Berkeley, California Sing Slightly Different