She probably would have brought her babies out sooner, but it took me about ten minutes to get a water snake out of my blind before I could set up the cameras. As soon as I was in the blind with both cameras, I saw her dive back in the box. I think she was just about to call them out when I made my first trip to the blind, but my extended presence delayed her plans. She brought them out just 15 minutes after I'd gone back in the house.
As she sat in the entrance, performing her final "predator check," you can see her talking to her ducklings. As soon as she dropped to the water and checked the area under the box, she called them out. I was very surprised that there were only two - it's by far the smallest brood I've ever seen. There was one unhatched egg left in the box. I speeded up the video 20x after both babies had jumped until the time that they disappeared from view of the camera. I think they are eating insects from the vegetation as she zig-zags them to a safer location.
She has her work cut out for her 24/7 for at least the next 60 days until those little babies are flying. She's probably glad to have a different view than the inside of a wooden box - her view for the last 30 days. Good luck little family!!