The night pictures were taken during moonless nights. I was actually surprised to see the Egret and the ducks when I got home and loaded the pictures on my PC. In both cases the D7'S EVF turned to B/W mode to boost up the ambient light. At the time the pictures were taken, I didn't even see or realize that the nocturnal guests were part of the frame with my naked eyes !
The lighting at the gazebo was low-voltage landscaping lights... Just plain amazing!