Now you've done it. A whole can of worms opened there!!
In theory, it wouldn't be that long on the evolutionary scale, especially when you consider that behaviourists were able to selectively breed 'tame' wolves in only a few generations.
However, on the other hand, shoots have gone on for hundreds and hundreds of years, right back to ye olde Kings and their Blunderbuss guns (or whatever they were called!!). Pheasants still fly today, even though we can assume that they differed in their reactions back then.
Some in fact do nothing at all - I know this because my dog brought a perfectly healthy cock pheasant out of the nearby crop field. He ate very well, once I'd butchered it a few days later, poor little pheasant! I do know that he had a very substantial breakfast the morning he became an ex-pheasant, so perhaps he was just too stuffed to move!
So, I conclude that pheasants are generally dippy and therefore unpredictable in their reaction to beaters. You can refer to my wisdom in future papers on the subject if you like
