No ducklings, never thought of that. I'll have to look at the pond every day early on. I don't know if it is one time thing and they were just resting, or if they really like it there. I did see ducks there once before a long time ago. I do have a little dog who might not like an invasion of her territory, she has the run of the large fenced in yard, so perhaps they would be discouraged.
They were so cute together, stayed very close to each other the whole time, a really loving couple, and very attractive looking.