How are unwitnessed behaviours (such as an adult bird building a nest the chick never saw the construction of) passed onto the next generation?

Question

How are unwitnessed behaviours (such as an adult bird building a nest the chick never saw the construction of) passed onto the next generation?

In: 7354

Answer 1

These are what are called innate behaviors, animals know them from the time of birth roughly speaking. Another great example is the fact that calves can stand and walk within hours of being born.

We have no idea how these behaviors are encoded genetically or neurologically and this is an active area of research.