What sounds do swans make? If i were to change the lyrics of the '6 little ducks'?

Question

how does this part goes?: mother swan said, "......" and all 5 little swans came back...someone told me they honk...i jus know geese does this but swans are graceful, they not suppose to honk right?

Answer 1

http://www.trumpeterswansociety.org/id.h...