Hi alex.swann
I notice you put in a question mark .... I would add thats its quite possibly a brown trout looking at the vid but you were there and saw the full quality picture....any more info?...you obviously have a doubt..why????
I posted a Salmon pic from last week but that was from a river where you would not imediatly think of for salmon. But I have suspected their presence for qite a few years....and have it confirmed now.
Salmon were recorded above norbury for the first time last year.... I think, in the first year class(0)
Bet you sat watching for ages.....great fun