| Ref | Site code | Season | Date | Count | IBA | Subregional IBA | RAMSAR |
|---|---|---|---|---|---|---|---|
| 145 | 29493102 | S | 1993-01-10 | 138 | |||
| 267 | 29493102 | S | 1994-01-13 | 288 | |||
| 493 | 29493102 | S | 1995-01-24 | 59 | |||
| 667 | 29493102 | S | 1996-01-21 | 10 | |||
| 1002 | 29493102 | S | 1997-02-02 | 38 | |||
| 2416 | 29493102 | S | 1998-02-15 | 54 | |||
| 2807 | 29493102 | S | 1999-01-15 | 8 | |||
| 3256 | 29493102 | S | 2000-01-23 | 76 | |||
| 3649 | 29493102 | S | 2001-01-28 | 25 | |||
| 4281 | 29493102 | S | 2002-01-27 | 61 | |||
| 4837 | 29493102 | S | 2003-01-26 | 12 | |||
| 5557 | 29493102 | S | 2004-01-25 | 12 | |||
| 6209 | 29493102 | S | 2005-01-30 | 15 | |||
| 6973 | 29493102 | S | 2006-01-29 | 25 | |||
| 8727 | 29493102 | S | 2007-01-21 | 6 | |||
| 500164 | 29493102 | S | 2008-01-26 | 3 | |||
| 502567 | 29493102 | S | 2013-02-03 | 1 | |||
| 504679 | 29493102 | S | 2015-01-24 | 1 |