| Ref | Site code | Season | Date | Count | IBA | Subregional IBA | RAMSAR |
|---|---|---|---|---|---|---|---|
| 351 | 27352935 | S | 1994-01-21 | 25 | |||
| 528 | 27352935 | S | 1995-01-20 | 6 | |||
| 738 | 27352935 | S | 1996-01-26 | 86 | 75 | 85 | |
| 2364 | 27352935 | S | 1998-02-07 | 16 | |||
| 2788 | 27352935 | S | 1999-02-10 | 19 | |||
| 3297 | 27352935 | S | 2000-03-10 | 16 | |||
| 3751 | 27352935 | S | 2001-02-15 | 136 | 75 | 85 | |
| 4471 | 27352935 | S | 2002-02-11 | 8 | |||
| 4686 | 27352935 | W | 2002-07-26 | 1 | |||
| 5038 | 27352935 | S | 2003-01-31 | 8 | |||
| 5616 | 27352935 | S | 2004-02-09 | 1 | |||
| 501299 | 27352935 | S | 2009-03-03 | 23 | |||
| 503873 | 27352935 | S | 2010-02-12 | 25 | |||
| 504041 | 27352935 | W | 2011-02-08 | 15 | |||
| 503947 | 27352935 | S | 2012-02-01 | 18 | |||
| 504043 | 27352935 | W | 2012-07-20 | 18 | |||
| 505335 | 27352935 | W | 2015-01-20 | 81 | 75 |