I appreciate the problem, Gulzar. My garden is tiny - 63 sq m (9 x 7), but my customers' gardens are anything up to 0.5 hectare.
Hobbies are becoming much more frequent summer visitors in many parts of the country.
Pam, if you can get hold of a copy of Ian Newton's 'Bird Migration' (Collins, 2010) you can see a lot of the most recent and most fascinating research.
Philippa, you're very lucky to have a Peregrine as a garden bird.
The garden sizes are a strangely limited range.
I would dig/pull out as many with roots as you can be bothered to now. Then glyphosate them when they're about a foot high next spring. Any remaining can be sprayed again in June/July. I reckon that will pretty well finish them
Like a lot of perennials the old leaves get a bit mildewed in late summer. I'd just cut back all the old growth now.
I've never been convinced about the common advice that hardy perennials need protecting from frost by leaving the foliage on.
It looks like privet and it's just had a bit of a shock, particularly if you've had the dry weather up there too. There appear to be new leaves coming. It's a hell of a job to kill it, so don't worry.
I'm sure there must be some sort of plum sauce (jus) that would go nicely with pheasant.