The river Teith for the last few years has had a increasing population of Grayling, this has been a locally well kept secret, and a number of residents and visitors have enjoyed getting out over the winter months to fish for them.
Unfortunately, along with the river Earn, Cormorants and goosanders have decimated these stocks!
Rainbow trout fisheries, like the Lake of Menteith, Carron Reservoir, Swanswater and Wellsfield to mention but a few are also suffering.
Of course this is proving to be very expensive for everyone; for the fishery owners who stock their waters with expensive Rainbow trout , who justifiably need to get their money back, and like us all, make a profit, and when they see there profits being eaten, by these predatory birds, they put up there prices accordingly.
and of course, the wild population of fish in our rivers, which,  if this allowed to continue, could potentially wipe out our native species.
There are deterrents out there to scare of these birds, however they seem to be a short term, quick fix, ie. decoys, which if not continuously moved, the birds become accustomed to, imitation gun shots, not good if you live near by! noise pollution.
If you have an idea that could help these fisheries and wild waters, reduce the numbers of these birds, preferably without killing them, as they are a protected species, with a fine of up to £2,000 if caught in the act, we would like to hear it. Please feel free to add your comments.