asteriaasteria wrote:Before leaving for migration Karl would do more nest work, like Tiit always did. So I think he will be back.

Last year (August 7) Karl didn't do a lot of nest work either, before starting his journey to the south (August 8), if I remember well.
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Lussi05 wrote then:
To me it looked like a closure. Karl arrived, he replaced a stick, pecked a little on the nest ground, cleaned his feathers for a long time, made his mark and left.
We will have to wait and see what happens.

But I believe he's gone. 10 days later than last year.