The British Birds Rarities Committee (BBRC) has announced that it is to consider all records of White-spotted Bluethroat Luscinia svecica cyanecula, a decision backdated to the 1st January 2021, with any sightings of breeding-plumaged males, or females/non-breeding males where there is reasonable evidence to suggest that subspecies, welcomed for submission.
White-spotted Bluethroat is a rare migrant to Britain, with records chiefly falling in March and the first half of April, a time when any Bluethroat seen is almost certainly going to be that subspecies. Red-spotted Bluethroat is a more numerous migrant that occurs later in the spring, primarily in May (there are just three previous April occurrences, the earliest being on 18th). The subspecies is also a very rare breeder in Britain, with males very occasionally setting up territory (recent examples of such behaviour come from Cambridgeshire and Norfolk).
Greater Manchester has only one record of Bluethroat, with a male at Haigh on the 18th May 1985, though surprisingly, the racial identification of this bird appears not to have been made by the observer.