Young Mallard hen

This was taken as one of a series of late Evening shots @ my favorite haunt, the Moat!I was hoping to get sight of our Kingfisher,but no such luck!
It wouldn't have seen much anyway,as the entire surface was covered in Duck weed.
In some of the shots,the Ducks appear to be swimming in green grass. lol
Giving the A/F on the D800 a real test before responding to Nikon regarding the repair?

Not too bad!!!!