Photo 6: Such an action shot is what I longed for. All is well that ends well. The breeding bird of photo 5 is now feeding one of the chicks.
Together with these 2 latecomers, 6 pairs produced an offspring of 14, all-in-all not a bad result.
* Canon EOS 7D with 500mm/f4 IS and 1.4x; ISO-400, f7.1, 1/800s; -0.3 stop; from tripod.