Mongo, these are great! The first one catches a specially fine moment, but they're all good. The 200-500 obviously does a great job, and your timing on these is spot-on.
The osprey in most of these is a fledgling, and still has the darker, speckled feathers and the distinctive orange-coloured eyes that the young ones have. I assume the bird on the left in the second picture is a proud parent. This past summer (here in the northern hemisphere) I spent a lot of time watching a pair who reared three very active, noisy and amusing chicks. They are really interesting, hard-working, and enterprising birds, as well as very photogenic!
Cheers, John