| Ref | Site code | Season | Date | Count | IBA | Subregional IBA | RAMSAR |
|---|---|---|---|---|---|---|---|
| 18 | 27412540 | S | 1992-02-05 | 35 | |||
| 146 | 27412540 | S | 1993-01-22 | 80 | |||
| 341 | 27412540 | S | 1994-01-14 | 43 | |||
| 541 | 27412540 | S | 1995-01-16 | 104 | |||
| 729 | 27412540 | S | 1996-01-28 | 6233 | 5000 | ||
| 876 | 27412540 | W | 1996-07-12 | 1 | |||
| 1043 | 27412540 | S | 1997-01-27 | 807 | |||
| 2354 | 27412540 | S | 1998-02-25 | 33 | |||
| 2791 | 27412540 | S | 1999-01-28 | 154 | |||
| 3291 | 27412540 | S | 2000-02-08 | 107 | |||
| 3552 | 27412540 | W | 2000-08-08 | 1 | |||
| 3760 | 27412540 | S | 2001-02-15 | 420 | |||
| 4468 | 27412540 | S | 2002-02-13 | 214 | |||
| 5057 | 27412540 | S | 2003-02-18 | 5 | |||
| 5604 | 27412540 | S | 2004-02-25 | 62 | |||
| 6328 | 27412540 | S | 2005-02-22 | 1391 | |||
| 1994 | 27412540 | S | 2006-03-08 | 407 | |||
| 8250 | 27412540 | W | 2006-08-18 | 1 | |||
| 8825 | 27412540 | S | 2007-02-15 | 148 | |||
| 9463 | 27412540 | S | 2008-02-27 | 172 | |||
| 501280 | 27412540 | S | 2009-02-12 | 10 | |||
| 504010 | 27412540 | S | 2010-02-24 | 145 | |||
| 504089 | 27412540 | S | 2011-02-11 | 214 | |||
| 503950 | 27412540 | S | 2012-02-14 | 810 | |||
| 504012 | 27412540 | S | 2014-02-27 | 262 |