Small bird flying along coast. At first I thought a juv Wheatear but don't recognise the breast colouring.
No interactions present.
Someone may attempt an ID, but the picture is really too indefinite to make a stab at an ID remotely worthwhile. I might suggest Meadow Pipit, but it would only be a complete guess from the photo. If you offered a written description of flight, size, colour...etc, that might help, otherwise it will remain just a passerine.
My Flickr photos...
Lat/Lng: 52.517, -4.0567
OS grid ref: SN605930