| 2019 | Bury Down, first-winter, 19th November. * |
| 2017 | Lambourn, 22nd December. * |
| 2010 | Remenham, 16th-17th October. |
| 2007 | Bury Down, 21st December. |
| 2007 | Remenham, first-winter, 20th-22nd October. |
| 2003 | Cookham, 6th October. |
| 2003 | Queen Mother Reservoir, juvenile/first-winter, 4th October. |
| 2002 | Eton Wick, first-winter, 20th October, same as Queen Mother Reservoir, 2nd October and Horton 7th October. |
| 2002 | Horton, first-winter, 7th October, same as Queen Mother Reservoir, 2nd October. |
| 2002 | Queen Mother Reservoir, first-winter, 2nd October. |
| 1998 | Horton, 13th-14th October. |
| 1998 | Slough SF, 7th October. |
| 1995 | South Ascot, 3rd April. |
| 1993 | Queen Mother Reservoir, 15th October. |
| 1990 | Summerleaze GP, 9th December. |
| 1990 | Holyport, 16th October, 1-2. |
| 1990 | Windsor Great Park, female/immature, 2nd October. |
| 1987 | Queen Mother Reservoir, 19th January, same as Slough SF, 13th January into February. |
| 1987 | Slough SF, 13th January, 1 adult 13th January, 2 adult and 1 first-winter 14th January, 1 adult and 2 first-winter 17th January, 2 18th and 20th January, 1m and 1 first-winter present until early February. |
| 1984 | Slough SF, two, 11th October. |
| 1979 | Queen Mother Reservoir, 27th-28th January. |
| 1979 | Summerleaze GP, 1st January. |
| 1967 | East Ilsley, found dead in April. |