After finishing my final assignment for University mid morning, I noted on my pager that 3 Black Terns had been reported at Cropston Reservoir. So before handing in my assignment I nipped over to Cropston to see the terns. Arriving at the dam, I met up with Paul (one of the Groby crew) as he was scanning the reservoir. Straight away I picked up a couple of Black Terns flying around the reservoir and then I noticed a couple of smaller terns as there flew past. I knew straight away that there Little Terns due to there size and build. I shouted to Paul to get on terns which he did, and then I scanned through the other terns feeding over the reservoir, and noted that there was 2 adult Little Terns , 3 Black Terns , up to six Arctic Terns and a single Common Tern just feeding off the dam. As this was a good count of Terns I phoned the news out. Watching the Terns for the next half an hour, the majority moved off when the weather improved, but the Black Terns did stick around until the e...