| Ref | Site code | Season | Date | Count | IBA | Subregional IBA | RAMSAR |
|---|---|---|---|---|---|---|---|
| 7 | 29182637 | S | 1992-01-31 | 1 | |||
| 66 | 29182637 | W | 1992-07-01 | 1 | |||
| 150 | 29182637 | S | 1993-01-18 | 67 | |||
| 347 | 29182637 | S | 1994-01-12 | 91 | |||
| 527 | 29182637 | S | 1995-01-10 | 212 | |||
| 737 | 29182637 | S | 1996-01-22 | 37 | |||
| 1051 | 29182637 | S | 1997-01-21 | 175 | |||
| 2799 | 29182637 | S | 1999-01-27 | 404 | |||
| 3084 | 29182637 | W | 1999-07-15 | 32 | |||
| 3296 | 29182637 | S | 2000-02-09 | 46 | |||
| 3759 | 29182637 | S | 2001-02-02 | 499 | |||
| 4463 | 29182637 | S | 2002-02-06 | 20 | |||
| 5043 | 29182637 | S | 2003-02-06 | 137 | |||
| 5597 | 29182637 | S | 2004-02-13 | 541 | |||
| 6320 | 29182637 | S | 2005-02-02 | 307 | |||
| 8812 | 29182637 | S | 2007-02-07 | 309 | |||
| 500205 | 29182637 | S | 2008-02-06 | 691 | |||
| 501297 | 29182637 | S | 2009-02-06 | 56 | |||
| 503888 | 29182637 | S | 2010-02-08 | 21 | |||
| 502323 | 29182637 | S | 2011-02-14 | 4 |