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