Where I used to work had a small water retention pond in back. For years ducks would have their little babies following them around. The ladies would go out and feed the little ducklings.
It got more interesting when someone put a big 40-50 pound snapping turtle in the pond. The ladies would feed the ducks and to their shock the ducklings would disappear under the water just like that.
Someone finally got the snapper out of there.
I worked at HQ for GTE in Thousand Oaks CA.
We had ducks in a reflecting pond and some were
so upset that the raccoons were eating the ducklings.
Nature.