In reply to Tinpan:
The Midges in Donegal tend to be rather viscious during the early summer, so this may be worth considering for when you go there and where you go.
The last time I was there camping in June we couldn't eat outside our tents, as soon as we had food on our forks, we all had scores of midges on them. And this was camping close to the sea!
I imagine Poisoned Glen could be alive with them as its a boggy valley on the way up to it (although I have never actually been there, just drove past).