these guys have fledged and there are some clips of them zipping around the nest box. On the same Beleef de Lente site, the kestrels cam has 6 larges chicks that will likely fledge soon, very cute http://www.beleefdelente.nl/vogel/torenvalk
They are very adept at flying and landing. I notice, too, that there are usually at least a couple or maybe all of them back in the nest box at night. I wonder if it is because it is the only tall structure around? I don't recall that the Manitoba birds return to the nest box very often after they fledge.
The kestrels are a hoot, grabbing food and swallowing it whole (with a sand lizard tail hanging out of a beak
), and scooting backwards around the nest. And it is interesting to watch "Ma" defend the nest by fluffing out her feathers when the crows bother them. She looks quite fierce.