Visit today produced a record 26 Mandarin Ducks - the most ever seen in the county. I suspect they have been there all summer as most were still coming out of moult. There were 13 there in June but I have only seen small numbers since probably because they have been favouring the largest and most densely vegetated island. Now they are back on the smaller more thinly vegetated island so easier to see. They usually stay until about late October.
Saw these on 7 April