The "natural" beaver population is out of control on the Tay, the ones in Beauly have already escaped from where they were meant to be enclosed and there are rumours of people introducing more than just beavers into the Highlands.
Basically, there is no control, no real understanding of the population on the Tay and no chance of reversing the decision if it all goes Pete Tong (which it is!)
Post number 10 from 2nd November, that minx Strachan looking forward to some "live beaver action" on Autumnwatch. She has just used exactly the same phrase on Winterwatch. It must be deliberate, mustn't it? And where the hell is Kate Humble to participate with the Strachan minx when you need her?