A friend from Estes Park is a bird bander, owl researcher, author and bird rehabber. This year he built and put up 10 Barn Owl boxes in places along the Front Range. A web camera was installed in one box mounted on a garage at a farm area outside Lafayette, and soon after a pair of Barn Owls took up residence. We've watched as the male brings mice to the female and young. So far, about 7 of the 10 eggs have hatched. The female begins incubation with the first egg, so the young hatch in stages. The first hatched are larger and consequently the younger owlets have a harder time competing for food. It's hot in the box during mid day so you'll notice that the birds are panting to keep cool.
It's great fun to watch: www.carriep.org/
I also have a Barn Owl box that was used by American Kestrels for the second year. Kestrels are the smallest North American Falcon, and I usually have 1-3 pair nesting on our farm each year. This clutch had 5 young, and all fledged in the past week. The adults are very protective of the young as they prepare to fledge, and when I got close to the box to get pictures they would dive at me at ~60 mph and swoop by my head. Once, the male actually whacked me on the head, fortunately with a closed fist rather than open claws. Lots of drama with baby kestrels in the yard this week.
Here's the male Kestrel hovering:
And, Kestrel young from a box mounted on my house:
Have a happy 6th of July!