On the Ribble close to the marsh at high tide this afternoon 2 birders saw a Guillemot swimming upriver! - a 1st for our HOM recording area. Also seen were 12 Common Terns milling about on the river and 21 Arctic Terns headed in upriver in a tight & high flock. 9 Eiders (7m, 2f) were loafing about, while 3 Mediterranean Gulls flew over calling. A Turnstone was just over the seawall with c.150 Oystercatchers, 3 Golden Plover and a single Black-tailed Godwit. 3 Ringed Plovers, 4 Mute Swans, 2 Grey Herons, 1 Little Egret and 5 Wheatears completed the tally