How many wings are meant by "either wing"?

In this stanza, what is the "Mother-Bird" doing? Giving the little bird instructions in the way to begin flying.

Describe how he is to begin.

How does the baby feel about it? He feels afraid.

What word tells you this? "Pauses."

What does he think is deep? The distance between the tower and the ground.

Why is the bird afraid to attempt to fly? It is so far to the ground and his "wings" seem very "small".

Why is the "Mother" not afraid to let her baby try? She knows that God will carry him safely.

How does she know this? Because "He" had "carried" her.

When? When she was as small as the baby swallow is now.