| Ref | Site code | Season | Date | Count | IBA | Subregional IBA | RAMSAR |
|---|---|---|---|---|---|---|---|
| 1091 | 31421812 | W | 1997-07-14 | 10 | |||
| 2461 | 31421812 | W | 1998-07-29 | 6 | |||
| 2919 | 31421812 | W | 1999-07-06 | 12 | |||
| 3454 | 31421812 | W | 2000-07-24 | 11 | |||
| 3802 | 31421812 | S | 2001-01-25 | 2 | |||
| 3950 | 31421812 | W | 2001-07-10 | 2 | |||
| 4247 | 31421812 | S | 2002-01-22 | 1 | |||
| 5162 | 31421812 | W | 2003-07-02 | 13 | |||
| 6087 | 31421812 | W | 2004-08-03 | 12 | |||
| 6683 | 31421812 | W | 2005-08-04 | 9 | |||
| 8077 | 31421812 | S | 2006-01-31 | 1 | |||
| 8236 | 31421812 | W | 2006-07-26 | 2 | |||
| 8672 | 31421812 | S | 2007-01-17 | 1 | |||
| 8976 | 31421812 | W | 2007-08-21 | 1 | |||
| 500404 | 31421812 | W | 2008-08-14 | 25 | |||
| 501077 | 31421812 | W | 2009-07-22 | 20 | |||
| 503604 | 31421812 | W | 2010-07-19 | 6 | |||
| 503633 | 31421812 | S | 2011-01-19 | 1 | |||
| 503691 | 31421812 | W | 2011-08-03 | 8 | |||
| 503690 | 31421812 | S | 2012-01-11 | 41 | |||
| 503689 | 31421812 | W | 2012-07-24 | 31 | |||
| 503687 | 31421812 | W | 2013-07-24 | 26 | |||
| 505354 | 31421812 | S | 2014-02-05 | 6 | |||
| 506529 | 31421812 | W | 2014-08-04 | 14 | |||
| 506531 | 31421812 | W | 2015-07-29 | 49 | |||
| 506532 | 31421812 | S | 2016-01-26 | 18 | |||
| 506985 | 31421812 | W | 2017-07-31 | 10 | |||
| 506976 | 31421812 | S | 2018-01-30 | 1 | |||
| 507434 | 31421812 | W | 2018-07-24 | 8 | |||
| 508414 | 31421812 | S | 2019-01-17 | 7 | |||
| 508601 | 31421812 | W | 2019-08-20 | 4 | |||
| 508605 | 31421812 | W | 2020-07-02 | 5 | |||
| 509139 | 31421812 | O | 2021-07-30 | 2 | |||
| 509938 | 31421812 | S | 2023-01-18 | 2 | |||
| 510162 | 31421812 | W | 2023-07-05 | 8 | |||
| 510908 | 31421812 | W | 2024-08-15 | 6 | |||
| 511069 | 31421812 | S | 2025-01-08 | 15 | |||
| 511386 | 31421812 | O | 2025-04-25 | 12 | |||
| 511504 | 31421812 | W | 2025-07-22 | 11 | |||
| 511684 | 31421812 | O | 2025-10-30 | 3 |