I visited Iceland for a week in August 2016. It was a trip with my wife and two daughters, and I had limited opportunities for birdwatching. But I always try to make the most of my opportunities! And, it turned out that at the time of the year that I was there, Iceland had lots of birds. It was a very pleasant surprise for me! (NB if I'd gone there one month later, most of them would have already departed for warmer parts of the world).