| Ref | Site code | Season | Date | Count | IBA | Subregional IBA | RAMSAR |
|---|---|---|---|---|---|---|---|
| 7 | 29182637 | S | 1992-01-31 | 1 | |||
| 150 | 29182637 | S | 1993-01-18 | 542 | |||
| 347 | 29182637 | S | 1994-01-12 | 187 | |||
| 430 | 29182637 | W | 1994-07-18 | 2 | |||
| 527 | 29182637 | S | 1995-01-10 | 660 | |||
| 737 | 29182637 | S | 1996-01-22 | 146 | |||
| 1051 | 29182637 | S | 1997-01-21 | 8 | |||
| 2363 | 29182637 | S | 1998-01-22 | 521 | |||
| 2799 | 29182637 | S | 1999-01-27 | 58 | |||
| 3296 | 29182637 | S | 2000-02-09 | 31 | |||
| 3759 | 29182637 | S | 2001-02-02 | 149 | |||
| 4463 | 29182637 | S | 2002-02-06 | 41 | |||
| 5043 | 29182637 | S | 2003-02-06 | 973 | |||
| 5330 | 29182637 | W | 2003-08-04 | 15 | |||
| 5597 | 29182637 | S | 2004-02-13 | 512 | |||
| 6320 | 29182637 | S | 2005-02-02 | 205 | |||
| 8812 | 29182637 | S | 2007-02-07 | 149 | |||
| 500205 | 29182637 | S | 2008-02-06 | 505 | |||
| 501297 | 29182637 | S | 2009-02-06 | 149 | |||
| 503888 | 29182637 | S | 2010-02-08 | 17 | |||
| 503728 | 29182637 | S | 2013-02-18 | 81 | |||
| 503990 | 29182637 | S | 2014-02-24 | 40 | |||
| 505331 | 29182637 | S | 2015-01-28 | 62 |