One thing we really wanted was to see the dad delivering food while mom incubated eggs and brooded chicks. Last year without night vision, we only saw the aftermath. Once the chicks were born, there would be a small pile of rodents in one corner of the box every morning. So what time does Dad come, how often, etc. On the first night of incubating we taped from 9:00 PM to 3:00 AM. We thought that Dad made 5 deliveries at 9:01, 9:20, 9:24, 10:13, and 12:24. But that was from watching the inside camera. During that time, Mom spent some time sitting in the hole looking out (her passion, looking out that hole) and so later we stumbled across this amazing video (390K). You barely see it, but he hands her a rodent just as he arrives. Not sure of the exact time, but this was before 10:30. So, Mom got 6 rodents from Dad that night. Plus, she went out hunting on he own from 10:27 to 10:33 and from 12:59 to 1:15 and may have caught one or two then.
When Mom is resting inside the box Dad deliver sfood right to her, then jumps in, turns arounf, and climbs out. Here's the video (758K).
It looks like Mom is a bit bigger than Dad. So, here are a couple of photos. The one on the left is Mom, taken in January. The one on the right is Dad, taken April 3rd.
Looks like Dad is in fact smaller. The other thing we notice is that when Mom hangs out of the hole, she fills it pretty tight, Dad slips through with room to spare.
Here is one of Dad's deliveries from April 3rd. This is the best frame for seeing that he's carrying something in his beak. I suppose I have to figure out how to get the video without the interlace.