You could go and meet the man yourself pal,just like I did?...he sat and showed every single one of us lads at the fishing comp,what he had on this subject...and not one of those lads would call him cuckoo or a bare face liar ?...what does that tell you? I don't believe there's 100's/1000's roaming around,more like 30/50 that travel fair distances to breed,hence the regular seasonal sightings, that small number would suggest that there's lots of inbreeding/mixing with ferals bringing the size down and colour variations that are reported ...that's just my take on it from having spoken to good