Anas acuta – HWYADEN LOSTFAIN – Winter visitor and passage migrant. Has bred
Dates of departure and arrival. Note that in some years, dates were complicated by a few pairs remaining to breed. For more detail on breeding, see Pintail – breeding records
| Year | Last recorded | First recorded | Comment |
| 1981 | 8 April | 8 Sept | |
| 1982 | 6 May | 8 Sept | |
| 1983 | 7 April | 15 Oct | |
| 1984 | 18 April | 4 Sept | |
| 1985 | 24 March | 6 Oct | |
| 1986 | 24 April | 2 Nov | |
| 1987 | 21 April | ? | Breeding? |
| 1988 | 12 April | ? | Breeding |
| 1989 | Breeding | ||
| 1990 | Breeding | ||
| 1991 | Breeding | ||
| 1992 | 11 April | 5 Oct | Breeding |
| 1993 | March | 6 Sept | Breeding |
| 1994 | 14 May | 26 Aug | Breeding |
| 1995 | 14 May | 30 Aug | Breeding |
| 1996 | Mid-April | 14 Sept | Note (1) below |
| 1997 | March | Sept | Summer |
| 1998 | Feb | 20 Sept | Summer |
| 1999 | 23 April | 10 June | Summer |
| 2000 | 17 April | 23 Sept | |
| 2001 | 15 March | 29 Aug | |
| 2002 | 11 May | 16 Sept | Breeding |
| 2003 | 5 April | 14 Sept | 64 on Daugleddau 18 Jan |
| 2004 | 30 March | 13 Sept | |
| 2005 | 20 May | 21 Sept | |
| 2006 | 9 April | 10 Sept | |
| 2007 | 25 Jan | 28 Sept | |
| 2008 | 27 Feb | 31 Aug | |
| 2009 | March | 17 Sept | |
| 2010 | 18 Feb | 4 Sept | |
| 2011 | 18 Feb | 5 Sept | 59 at Sprinkle Pill on 13 Jan |
| 2012 | 15 Feb | 14 Oct | |
| 2013 | 6 April | 24 Sept | |
| 2014 | 7 Sept | ||
| 2015 | 15 May | 14 Oct | |
| 2016 | 29 Feb | 18 Oct | |
| 2017 | 2 May | 28 Sept | |
| 2018 | 7 May | 5 Oct | |
| 2019 | 1 May | 22 Sept | |
| 2020 | 5 April | 20 Sept |
Note (1) In 1996 a spring passage was detected on the Cleddau Estuary during daily monitoring of water birds immediately after the Sea Empress oil spill
Records extracted from the Pembrokeshire Bird Reports, which may contain more detail than shown here.
