This morning a female Marsh Harrier was hunting over the Slurry Lagoon reed-bed. She then circled for height and flew to the NE. Two Common Terns were over the Deep Pit and then flew SE towards Holme Pierrepont. A Red Kite was chased across the site by a Carrion Crow, N to S and a Curlew flew over the site, S to N. There were three Garden Warblers singing and four Lesser Whitethroats singing. PS.