Swan and ?

We are always looking at what nature offers us in and around Lady Bird Lake. Our friend Jackie snapped this picture, thinking she was just getting a nice composition of swans and ducks. Upon further inspection, she says:

I thought we just snapped a couple of swans, but looking more closely, the smaller one looks more like a young snow goose. Doesn't have the swan's black outline around the beak.

Bird watchers? (Click on the picture for a larger image.)