I first encountered this sea cliff colony back in 1979, it was my first ever sight of House Martins in their natural nesting environment., Forty years later (argh!) my memory is of a large and thriving colony. This afternoon on a half hour visit, I counted five occupied nests, I need to return with a telescope but my impression is that it was far bigger and better back then. Not surprisingly, no signs of sparrows, but I was pleased to spot a few nests on nearby houses as I drove past towards Moylegrove. Not a great road to stop on, but it will probably be worth further investigation when I get a chance.
