1). 1979 Great Pool, Tresco, female or immature male, 17th October to 1st November.
(M. J. Rogers and the Rarities Committee, British Birds 73: 500; M. J. Rogers, British Birds 76: 33).
2). 1980 Great Pool, Tresco, adult male, 30th September to 2nd January 1981.
(M. J. Rogers and the Rarities Committee, British Birds 74: 462; M. J. Rogers and the Rarities Committee, British Birds 75: 493; Flood, Hudson & Thomas, 2007).
3). 1982 Porth Hellick Pool, St Mary's, three: first-winter male and two immatures, 27th September.
(M. J. Rogers and the Rarities Committee, British Birds 76: 487; M. J. Rogers and the Rarities Committee, British Birds 77: 516).
6). 1985 Tresco, juvenile to first-winter male, 14th October to 17th November.
(M. J. Rogers and the Rarities Committee, British Birds 79: 537).
7). 1986 Great Pool, Tresco, male, 29th October.
(M. J. Rogers and the Rarities Committee, British Birds 81: 548).
8). 1988 Great Pool, Tresco, male, 21st to 30th October.
(M. J. Rogers and the Rarities Committee, British Birds 83: 453).
9). 1989 Great Pool, Tresco, male, 13th November.
(M. J. Rogers and the Rarities Committee, British Birds 83: 452).
10). 1990 Great Pool, Tresco, male, 8th to 17th October.
(M. J. Rogers and the Rarities Committee, British Birds 84: 462).
11). 1993 Great Pool, Tresco, male, 23rd September.
(M. J. Rogers and the Rarities Committee, British Birds 88: 503).
12). 1998 Porth Hellick Pool, St Mary's, two, immature males, 4th to 9th October, one remaining to 10th October; one of same, Tresco, 9th October, photo.
(Birding World 11 (10): 367, photo; M. S. Scott, Isles of Scilly Bird Report 1998: 16; Isles of Scilly Bird Report 1998: photo; Flood, Hudson & Thomas, 2007: plate 8).
14). 1999 Great Pool, Tresco, first-winter male, 11th October to 2nd November.
(M. S. Scott, Isles of Scilly Bird Report 1999: 40).
15). 1999 Great Pool, Tresco, male, 2nd November.
(M. S. Scott, Isles of Scilly Bird Report 1999: 40).
16). 2000 Old Town Bay, St Mary's, two: first-winter male and female, 14th October.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2000: 46, plate 2; R. L. Flood, Isles of Scilly Bird and Natural History Review 2001: 46).
18). 2000 Tresco, first-winter female, 14th to 23rd October, photo.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2000: 46, plate 2; R. L. Flood, Isles of Scilly Bird and Natural History Review 2001: 46).
19). 2001 Watermill Cove, St Mary's, male, 2nd October; same, Big Pool, St Agnes, 2nd to 15th October; same, St Mary's, Porth Hellick, 3rd, 11th and 13th October, photo.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2001: 46, plate 2).
20). 2002 Great Pool, Tresco, male, 30th April, 7th and 9th May; same, St Mary's, Porth Hellick, 1st to 9th May.
(Birding World 15 (5): 189, photo; R. L. Flood, Isles of Scilly Bird and Natural History Review 2002: 54).
21). 2002 St Mary's, first-winter female, 9th October, photo; same, Great Pool, Tresco, 10th October to 5th November.
(Birding World 15 (10): 402, photo; R. L. Flood, Isles of Scilly Bird and Natural History Review 2002: 54; British Birds 98: plate 30; Flood, Hudson & Thomas, 2007: plate 8).
22). 2002 St Mary's, another first-winter female, 9th to 19th October.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2002: 54).
23). 2005 Porth Hellick Pool, St Mary's, male, 29th May to 8th June; same, Great Pool, Tresco, 8th June to 19th November, photo.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2005: 43; Flood, Hudson & Thomas, 2007: plate 8).
24). 2006 Porth Hellick Pool, St Mary's, male, 5th January.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2006: 32).
25). 2006 Great Pool, Tresco, male, 12th February to 15th March.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2006: 32).
26). 2006 Great Pool, Tresco, male, 4th to 22nd November.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2006: 32).
27). 2007 Porthloo Duck Pond and Porth Hellick, St Mary's, first-winter male, 4th October, photo.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2007: 32, plate 2).
28). 2012 Porthloo, St Mary's, three, first-winters: one male and two females, 16th October; same, Porth Hellick Pool, St Mary's, 17th to 25th October, photo; same, Great Pool, Tresco, and Porth Hellick Pool, intermittently, 26th October to 15th April 2013.
(Birding World 25 (10): 399, photo; P. Sterry, Isles of Scilly Bird and Natural History Review 2012: 45; P. Sterry, Isles of Scilly Bird and Natural History Review 2013: 52).
31). 2019 Abbey Pool, Tresco, 1CY, male, 24th October, photo.
(C. Cillia, Isles of Scilly Bird and Natural History Review 2019: 67, photo).
32). 2024 Abbey Pool, Tresco, male, 14th to 16th April, photo.
(C. Cilia, Isles of Scilly Bird and Natural History Review 2024: 76, photo).