Acrocephalus scirpaceus – TELOR Y CYRS – Breeding summer visitor and passage migrant. Not recorded from December to March
Earlier records are summarised in Reed Warbler 1994
| Year | First sighting | Last sighting | Notes |
| 1993 | 2 May | 12 October | |
| 1994 | 13 May | 12 November | Latest county record |
| 1995 | 29 April | 18 October | Productivity: 106 of 204 trapped at Teifi Marshes CES were juveniles |
| 1996 | 19 April | 10 October | |
| 1997 | 24 April | 15 October | |
| 1998 | 27 April | 9 October | 77 birds trapped at Teifi Mrshes CES (19 from previous years). Newly ringed were 36 juveniles and 22 adults. A bird ringed here in 1995 was retrapped 18 August 1998; in intervening years it had been retrapped in France. |
| 1999 | 3 April | 15 September | Earliest date for Pembrokeshire. 51 breeding territories at Teifi Marshes |
| 2000 | 4 May | 30 September | |
| 2001 | 20 April | 4 November | |
| 2002 | 4 May | 28 October | |
| 2003 | 15 April | 15 October | |
| 2004 | 11 April | 25 October | |
| 2005 | 3 April | 22 October | |
| 2006 | 22 April | 28 September | |
| 2007 | 27 April | ||
| 2008 | 25 April | 3 September | 25 singing birds at Teifi Marshes on 8 June |
| 2009 | 12 April | 26 September | 111 ringed at Teifi Marshes CES |
| 2010 | 22 April | 10 October | |
| 2011 | 15 April | 29 September | |
| 2012 | 12 May | ||
| 2013 | 28 April | 25 July | |
| 2014 | 15 April | 28 September | |
| 2015 | 17 April | 29 September | |
| 2016 | 12 April | 8 October | |
| 2017 | 21 April | 10 September | |
| 2018 | 16 April | 29 September | |
| 2019 | 11 April | 18 October | |
| 2020 | 9 April | 21 October |
