We have about 200 pairs of oystercatchers nesting on flat, gravel covered roofs in Aberdeen; the largest such population in Europe. Alistair Duncan and other have been putting Darvics on them since 1996 and have had a number of sightings from across the UK including north west England, north and south Wales.
N57 was ringed in Aberdeen on 31 May 2007 as a chick at the cricket club. On the first day of the 2010 the bird was seen just outside Dungarvan town, County Waterford, Ireland by Mícheál Cowming. This is only the second or third sighting from southern Ireland so is great news. The only roof nesting pair in Ireland that we know of is in Cork.