2018 | Eton Wick, juvenile, 27th August to 10th September, 2 birds between 2nd and 5th September. * |
2014 | Slough SF, 10th July. |
2013 | Private land, 6th April. |
2004 | Great Meadow Pond, juvenile, 9th-10th September. |
2002 | Lavell's Lake, juvenile, 4th-6th September. |
2000 | Eton Wick, juvenile, 9th-19th October. |
1999 | Lavell's Lake, juvenile, 7th-9th August. |
1997 | Lavell's Lake, juvenile, 21st August to 21st September. |
1997 | Theale GPs, 19th August. |
1990 | Thatcham Marsh, 6th May. |
1989 | Ham SF, juvenile, 4th-5th October. |
1988 | Wraysbury GPs, 31st August. |
1987 | Lavell's Lake, 27th September to 2nd October. |
1985 | Thatcham Marsh, immature, 1st September, until end of September, possibly present 24th August. |
1979 | Slough SF, 23rd September. |
1978 | Thatcham Marsh, 1st January. |
1976 | Freeman's Marsh, 26th August. |
1976 | Thatcham Marsh, 7th March. |
1976 | Manor Farm SF, 17th January, also 21st and 23rd January, three 24th September. |
1975 | Manor Farm SF, late August to 29th December. |
1974 | Manor Farm SF, 14th October. |
<1974 | Confidential, many records. |