1). 1858 No locality, shot, 13th November, photo, now at Isles of Scilly Museum.
(R. W. J. Smart, Transactions of the Penzance Natural History Society 1888: 165; Penhallurick, 1978: 143; Flood, Hudson & Thomas, 2007: plate 88).
2). 1962 Gugh, two days in February.
(H. M. Quick, Cornwall Bird Watching & Preservation Society Report 1962: 52; J. L. F. Parslow, St Agnes Bird Observatory Report 1961-62: 16).
3). 1966 St Mary's, found dead, very emaciated, 2nd October.
(H. M. Quick, Cornwall Bird Watching & Preservation Society Report 1966: 75).
4). 1975 St Agnes, 25th October.
(D. B. Hunt & H. P. K. Robinson, Isles of Scilly Bird Report 1975: 17).
5). 1976 St Mary's, early January.
(D. B. Hunt & H. P. K. Robinson, Isles of Scilly Bird Report 1976: 19).
6). 1979 Porth Hellick, St Mary's, 18th October.
(H. P. K. Robinson & D. B. Hunt, Isles of Scilly Bird Report 1979: 27).
7). 1981 Garrison, St Mary's, flew in off MV Scillonian III, 6th November.
(D. B. Hunt & M. J. Rogers, Isles of Scilly Bird Report 1981: 30).
8). 1991 Garrison, St Mary's, 2nd January.
(P. J. Robinson, Isles of Scilly Bird Report 1991: 42).
9). 2003 Longstone, St Mary's, 24th to 26th October.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2003: 77).
10). 2005 Sandy Lane, St Mary's, 13th January to early February.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2005: 97).
11). 2005 Borough Farm, Tresco, 2nd November through winter, photo.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2005: 97).
12). 2006 Sandy Lane, St Mary's, 2nd January to 19th April.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2006: 72).
13). 2011 Abbey crossroads, Tresco, 28th February.
(P. Sterry, Isles of Scilly Bird and Natural History Review 2011: 89).
14). 2018 Higher Moors, St Mary's, 16th October.
(C. Cilia, Isles of Scilly Bird and Natural History Review 2018: 92).
15). 2019 Old Town, St Mary's, 31st January; same, Deep Point, St Mary's, 7th February; same, Higher Moors, St Mary's, 18th February; presumed same, Maypole, found dead, 15th March.
(C. Cillia, Isles of Scilly Bird and Natural History Review 2019: 116).
P). 2024 Holy Vale then Tremelethen area, St Mary's, 15th October to 29th November.
(birding information services).
The nominate form of Barn Owl that occurs in Britain, has also been found to show features of the continental guttata, thus proving that there are intergrades present.
A paper by P. R. French in British Birds (102: 494-503) lists the key features to identify a true guttata. These are:
Dark buff underparts, extending right down onto belly, legs and undertail.
Extensive dark markings around the eye, spreading out across the facial disc.
Extensive grey markings over the entire upperparts, with clearly more grey than buff visible. Other supplementary features are:
Mostly (preferable all) grey crown.
Bold dark bars across the outer primaries.
Dark grey tips to the primaries.
A darker brown edge to the facial disc.
These records are therefore Pending and are awaiting confirmation.
1). 1977 Tresco, found freshly dead, 19th or 20th October.
(D. B. Hunt & H. P. K. Robinson, Isles of Scilly Bird Report 1977: 26; Robinson, 2003).
2). 1988 Holy Vale, St Mary's, 12th October to 2nd November.
(M. J. Rogers & W. H. Wagstaff, Isles of Scilly Bird Report 1988: 26).
3). 2003 St Martin's, found dead after hit by vehicle, 20th October, now at Isles of Scilly Museum.
(R. L. Flood, Isles of Scilly Bird and Natural History Review 2003: 77; N. Hudson, Isles of Scilly Bird and Natural History Review 2006: 122; Flood, Hudson & Thomas, 2007: plate 88).