| Ref | Site code | Season | Date | Count | IBA | Subregional IBA  | RAMSAR | 
|---|---|---|---|---|---|---|---|
| 23 | 28342650 | S | 1992-02-05 | 270 | |||
| 153 | 28342650 | S | 1993-01-15 | 247 | |||
| 342 | 28342650 | S | 1994-01-19 | 299 | |||
| 522 | 28342650 | S | 1995-01-24 | 197 | |||
| 730 | 28342650 | S | 1996-01-30 | 486 | |||
| 877 | 28342650 | W | 1996-07-17 | 17 | |||
| 1044 | 28342650 | S | 1997-02-06 | 3 | |||
| 2355 | 28342650 | S | 1998-02-03 | 99 | |||
| 2795 | 28342650 | S | 1999-02-09 | 129 | |||
| 3292 | 28342650 | S | 2000-02-01 | 141 | |||
| 3756 | 28342650 | S | 2001-02-14 | 70 | |||
| 4460 | 28342650 | S | 2002-02-21 | 235 | |||
| 4712 | 28342650 | W | 2002-07-25 | 4 | |||
| 5047 | 28342650 | S | 2003-02-28 | 21 | |||
| 5332 | 28342650 | W | 2003-08-27 | 1 | |||
| 5601 | 28342650 | S | 2004-02-27 | 242 | |||
| 6119 | 28342650 | W | 2004-08-18 | 1 | |||
| 6321 | 28342650 | S | 2005-02-24 | 32 | |||
| 94008 | 28342650 | O | 2006-03-08 | 108 | |||
| 8932 | 28342650 | S | 2007-02-21 | 31 | |||
| 500194 | 28342650 | S | 2008-02-26 | 21 | |||
| 501522 | 28342650 | S | 2009-02-10 | 34 | |||
| 504034 | 28342650 | S | 2010-02-16 | 53 | |||
| 502267 | 28342650 | S | 2011-03-07 | 143 | |||
| 503913 | 28342650 | S | 2012-02-23 | 62 | |||
| 503179 | 28342650 | S | 2013-03-04 | 106 | |||
| 504196 | 28342650 | S | 2014-03-27 | 212 | |||
| 505316 | 28342650 | S | 2015-01-26 | 5 |