In the Mary Poppins *books*, were the twins (infants) able to converse with animals, because they could not?
yet speak language?
Trying to recall the book in which two small children converse with small animals outside their nursery window. The (birds and ?) mention it is too bad, soon the children will be old enough to speak, and then will not be able to understand animal speech anymore. The children say no, they will remember, but the birds come back in the spring, and the children cannot understand them, are speaking words with adults.
Was this in the Mary Poppins books? The first one?