She was back today, with 6 of her remaining babies.( I can tell it is her, she has a scar just above her bill on her left side) I think she took the little ones down the hill to the creek, and then brought them back up when they were bigger.
I decided to go down to the creek and see if there were more smart mom's down there.
I found another family, they wouldn't let me get anywhere close. she took those babies in the opposite direction, silently, not a peep out of anyone.
Look close, see momma ducks feet on the left and the babies following. I took these pictures from the bridge that crosses the creek. When the ducks were gone I turned around and , wow! Look at this tree!( if had been a snake it would have bitten me...at least I was looking out for poison oak when I was down at the creek!)