| dFH: eleven records of twelve birds to 1961. 2 in April, 6 May, 1 June, 2 undated (1 probably autumn) (all below). | |
| <1875 | One shot at the Crumbles (ES) some few years prior to 1875. | WB |
| <1905 | One at Warnham Mill Pond (WS) many years prior to 1905. | WB |
| 1873 | One succumbed at South Heighton (ES) in May. | WB |
| 1891 | Two seen at the Midrips (ES) on 30 May. | WB |
| 1911 | [Seven between Winchelsea and Rye (ES) on 29 May of which three were shot.] | WB HR |
| 1939 | An adult seen at Pevensey Levels (ES) on 18 May (Walpole-Bond, J. 1939. White-winged Black Tern in Sussex. British Birds 33:87). | * |
| 1956 | An adult west off Hove (ES) on 15 June (Sutton, G.A. 1958. White-winged Black Tern in Sussex. British Birds 51:160). | * dFH |
| 1959 | An adult east past Selsey Bill (WS) on 18 April. | * × dFH |
| An adult on Sidlesham Ferry (WS) from 13 to 16 May. | * × |
| An adult on Sidlesham Ferry (WS) on 30 May. | * × |
| 1960 | An adult east past Selsey Bill (WS) on 27 April. | * × |
| A juvenile west past Langney Point (ES) on 23 September. | * × dFH |
| 1964 | An adult in winter plumage at Langney Point (ES) on 12 and 13 August. | * × |
| A juvenile at Langney Point (ES) on 13 and 14 August. | * × |
| 1966 | A juvenile at Portfield Gravel Pit, Chichester (WS) from 27 to 30 August. | * × |
| 1968 | A juvenile at Northpoint Gravel Pit, Rye (ES) on 11 August. | * × |
| A juvenile at Ivy Lake, Chichester (WS) from 11 to 16 September. | * × |
| 1971 | An adult at Rye Harbour (ES) on 23 August. | * × |
| A juvenile at Arlington Reservoir (ES) on 24 August. | * × |
| 1972 | An adult at Rye Harbour (ES) on 28 May. | * × |
| An adult at Chichester Gravel Pits (WS) on 6 and 7 June. | * × |
| 1973 | An adult at Chichester Gravel Pits (WS) on 26 May and 1 June. | * × |
| An adult moulting into winter plumage at Thorney Great Deep (WS) on 11 August. | * × |
| 1975 | A juvenile at Shopwhyke Lake, Chichester (WS) from 24 to 30 August. | * × |
| A juvenile at Pett Pools (ES) on 29 and 30 August. | * × |
| 1977 | An adult at Sidlesham Ferry (WS) on 26 May. | *78 × |
| An adult in Pagham Harbour (WS) on 30 July. | *78 ×78 |
| A juvenile at Pett Pools (ES) from 27 August to 10 September was joined by a second juvenile on 2 and 3 September. | *78 × |
| 1980 | An adult at Chichester Gravel Pits (WS) from 5 to 7 August. | * × |
| 1981 | An adult at Bewl Water (ES) on 3 May. | * × |
| An adult at the Ternery Pool, Rye Harbour (ES) on 15, 20 and 21 June. | * × |
| 1984 | An adult at Barcombe Reservoir (ES) on 19 May (British Birds 78 plate 268). | * × |
| A juvenile in the lower Cuckmere Valley (ES) from 16 to 28 August. | * × |
| A juvenile at Ivy Lake, Chichester (WS) from 3 to 10 October. | *85 × |
| 1986 | An adult east past Brighton Marina (ES) on 21 June. | * × |
| 1987 | An adult at the Ternery Pool, Rye Harbour (ES) on 14 June. | * × |
| 1988 | A first or second summer at Sidlesham Ferry (WS) on 14 July, moved to Chichester Harbour (WS) from 15 July to 3 August, usually frequenting Cobnor Point, but also at Thorney Deeps on 16 July and Pilsey Island on 31 July and 3 August. | *89/*94 ×89 |
| 1989 | A juvenile at the Midrips (ES) on 3 and 4 September, moved to Dungeness from 5 to 11 September. | * × |
| 1992 | An adult at Pilsey Island (WS) on 14 and 15 May. | * × |
| An adult at Pett Pools (ES) on 26 August, moved to Northpoint Gravel Pit, Rye (ES) from 28 August to 4 September. | * × |
| 1995 | An adult at Thorney Great Deep (WS) on 31 July. | * × |
| An adult, presumably the same, at Drayton Gravel Pit and the Trout Lake, Chichester (WS) from 3 to 6 August. | * × |
| A juvenile at Westhampnett Gravel Pit, Chichester (WS) from 27 to 30 August. | * × |
| Two juveniles at Ivy Lake, Chichester (WS) from 18 to 21 September with one remaining to 29th. | * × |
| 1998 | A juvenile at Ivy Lake, Chichester (WS), from 15 to 21 September. | * × |