This video from Ireland says about itself:
Sand Martins at Aughris Head Co. Sligo.
From the Pembrokeshire Birds blog in Wales:
Saturday, 7 March 2015
First Sand Martin
While going through a couple of hundred gulls sheltering in the Teifi Estuary for my WeBS count, a Sand Martin flying over was a nice surprise. A second, or the same bird, was over the river viewpoint on the Teifi Marsh.
Other birds of note were a Red-breasted Merganser and Great Crested Grebe near the boat builders. Wigeon and Teal numbers were down and Shelduck up as usual for the March count. 3 Goldeneye and 3 Goosander on the river.
Posted by Wendy J at 1:37 pm
Sand martins in Dutch Friesland: here.