The best time to see the Kingfisher in Ireland is around April and May, before the trees start getting leaves. The spot that is marked here usually has a Kingfisher nest every year according to expert knowledge from a local photographer who is shooting only the Kingfisher. You will need to spend a good amount of time there probably between 1-2h to have a chance to take a snap but they will come out every so often. Best times to take a photo there are the early mornings.