Unusual garden visitors

Blimey!! Green Sandpiper, Snipe and Pintail. Is there anyone else who have had unusual garden visitors in Ceredigion (or further afield) in the past? My list of 'seen' birds include Woodcock, Black Redstart, Merlin, Peregrine, Goshawk, Hobby (spotted by the badgerman Gareth Morgan) Dipper, Goosander, Heron, Kingfisher (in the river below house), Sand Martin (house martin, swift, swallow are regular).