I am wild about my ducks, just so you know where this is coming from.
Rather than consider reducing contact with her during this time, I would make effort to spend time with both, giving both treats together, so that they associate good, secure feelings with being around each other.
She has...
Ducks do grieve, and like people, each one is different. Something that has helped some ducks is an unbreakable mirror. It seems to comfort them.
You may also - might sound nuts to you - just want to talk to her, a little each day, and tell her kind things. Seriously, ducks may not know the...