Clangula hyemalis
Previous records of long-tailed ducks are summarised in Long-tailed Duck -2011
2012 - 1 female at Bosherston on the 10-15th November
2012 - 1 female from 5th December into 2013 off Wiseman's Bridge (possibly same as above).
2013 - 1 female Wiseman's Bridge 4 Jan - 27 March (same as above)
2013 - 1 drake Haroldston - 23 Feb (DJA)
2014 - 1 imm Bosherston 23 Nov - Dec 30
2016 - 1 Skomer 20 October
2016 -1 Gann 20 Nov (Gary ?)
2016 - 1 1st winter drake, Coppet Hall - Wiseman's Bridge - 22-24 Dec (Toby Phelps)
2016 - 1 Pen Caer - mid Dec.
2017 - 1 female Pen Caer - 4 Jan (first seen two weeks ago) to 3rd March (RD) (same as above)
2019 - 1 Pembroke Castle Pond 1-3 Nov
2019 - 1 Llys-y-fran 8 Nov
2019 - 1 Skokholm - 2 on 2nd Dec (3rd Skokholm record)
2019 - 2 Broad Haven, pair amongst the scoter flock, 7 - 29 Dec (probably same as above)
2020 - 2 Broad Haven from 2 -18 Jan (same as above)
Records extracted from the Pembrokeshire Bird Sightings Blog