| Ref | Site code | Season | Date | Count | IBA | Subregional IBA | RAMSAR |
|---|---|---|---|---|---|---|---|
| 800 | 26212830 | W | 1996-07-14 | 15 | |||
| 991 | 26212830 | S | 1997-01-26 | 2 | |||
| 2647 | 26212830 | S | 1999-02-07 | 13 | |||
| 3242 | 26212830 | S | 2000-01-23 | 28 | |||
| 3778 | 26212830 | S | 2001-01-28 | 65 | |||
| 4366 | 26212830 | S | 2002-01-27 | 49 | |||
| 4998 | 26212830 | S | 2003-01-26 | 44 | |||
| 5683 | 26212830 | S | 2004-01-25 | 21 | |||
| 6412 | 26212830 | S | 2005-01-30 | 12 | |||
| 7045 | 26212830 | S | 2006-01-29 | 4 | |||
| 8353 | 26212830 | W | 2006-07-30 | 2 | |||
| 8741 | 26212830 | S | 2007-01-21 | 26 | |||
| 8938 | 26212830 | W | 2007-07-29 | 6 | |||
| 500009 | 26212830 | S | 2008-01-13 | 2 | |||
| 500326 | 26212830 | W | 2008-07-27 | 14 | |||
| 500714 | 26212830 | S | 2009-01-25 | 52 | |||
| 502143 | 26212830 | S | 2010-01-31 | 19 | |||
| 504140 | 26212830 | W | 2010-07-25 | 53 | |||
| 504139 | 26212830 | S | 2011-01-30 | 10 | |||
| 504141 | 26212830 | W | 2011-07-31 | 17 | |||
| 502416 | 26212830 | S | 2012-01-22 | 38 | |||
| 504142 | 26212830 | W | 2012-07-29 | 18 | |||
| 504304 | 26212830 | S | 2013-01-27 | 185 | 150 | 75 | 85 |
| 507511 | 26212830 | W | 2013-07-28 | 14 | |||
| 507512 | 26212830 | W | 2014-07-27 | 47 | |||
| 507516 | 26212830 | S | 2015-01-25 | 67 | |||
| 507513 | 26212830 | W | 2015-07-26 | 60 | |||
| 507517 | 26212830 | S | 2016-01-31 | 19 | |||
| 507514 | 26212830 | W | 2016-07-31 | 12 | |||
| 507518 | 26212830 | O | 2017-01-27 | 38 | |||
| 507515 | 26212830 | W | 2017-07-30 | 18 | |||
| 506919 | 26212830 | S | 2018-01-28 | 84 | 75 | ||
| 507163 | 26212830 | W | 2018-07-29 | 8 | |||
| 507577 | 26212830 | S | 2019-01-27 | 12 | |||
| 508189 | 26212830 | S | 2020-01-26 | 44 | |||
| 508661 | 26212830 | W | 2020-07-26 | 17 | |||
| 508911 | 26212830 | S | 2021-01-31 | 18 | |||
| 509405 | 26212830 | S | 2022-01-30 | 7 | |||
| 509673 | 26212830 | W | 2022-07-31 | 1 | |||
| 509899 | 26212830 | S | 2023-01-29 | 53 | |||
| 510495 | 26212830 | S | 2024-01-28 | 4 | |||
| 511119 | 26212830 | S | 2025-02-02 | 75 | 75 |