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
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), 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.