Mallard nesting on my duck blind

So I was walking by the duck blind last week and watched this hen mallard land on the roof of the blind. Later when I saw she wasn't on the nest I was able to verify she is sitting on her eggs. How cool 

I got a mallard nesting on a stump right next to where I've been slamming bluegills.  I don't fish it any more so I don't chase her away.

cool... she blends in pretty good!