The answer is that they are all places we have paid for the RSPB to send its people to work in the last financial year.
Now I can twitch with the best of them, but an organisation that has an income of over £100m per year doesn't actually need taxpayer funding and certainly not to send its staff to exotic parts of the world on booze-ups jollies conservation trips. I mean there are plenty of twitchers who would pay to do this kind of thing.
According to fakecharities.org the RSPB gets £20m a year from you and me, so that's £20m we can save next year at the stroke of a pen. We can't afford it any longer.