Thanks CT & mmcp42, and Mitch sorry i should of said, that there was in fact a pair flying about the river, although it seemed they bickered more, than were friendly towards each other but the romantic time of the year has passed!!, and yes the bird with the fish is the female.
We put the hide on the edge of the river bank after studying where the birds were settling on a regular basis, we then placed a perch (large thin arched stick) into the bank where it was shallow, and there were signs of small fish about, and then sat and waited, and it didnt take long before they started to land on the perch, so every morning for the week we were there we had the privilage of seeing these beautiful little birds.