| Ref | Site code | Season | Date | Count | IBA | Subregional IBA  | RAMSAR | 
|---|---|---|---|---|---|---|---|
| 398 | 28213209 | W | 1994-07-21 | 821 | 710 | ||
| 613 | 28213209 | W | 1995-08-15 | 21 | |||
| 741 | 28213209 | S | 1996-01-24 | 2 | |||
| 2034 | 28213209 | W | 1997-08-01 | 18 | |||
| 2321 | 28213209 | S | 1998-01-21 | 1 | |||
| 2985 | 28213209 | W | 1999-08-16 | 12 | |||
| 3390 | 28213209 | W | 2000-07-28 | 20 | |||
| 4074 | 28213209 | W | 2001-08-14 | 9 | |||
| 4596 | 28213209 | W | 2002-08-20 | 86 | |||
| 5209 | 28213209 | W | 2003-08-15 | 184 | |||
| 5969 | 28213209 | W | 2004-08-04 | 59 | |||
| 6618 | 28213209 | W | 2005-09-08 | 39 | |||
| 6952 | 28213209 | S | 2006-01-25 | 1 | |||
| 8157 | 28213209 | W | 2006-08-23 | 2 | |||
| 9017 | 28213209 | W | 2007-08-21 | 57 | |||
| 500368 | 28213209 | W | 2008-08-06 | 38 | |||
| 500846 | 28213209 | S | 2009-02-03 | 171 | |||
| 501169 | 28213209 | W | 2009-07-22 | 806 | 710 | ||
| 502130 | 28213209 | S | 2010-01-15 | 273 | |||
| 502129 | 28213209 | W | 2010-07-22 | 673 | |||
| 502523 | 28213209 | O | 2012-08-23 | 4 | |||
| 503239 | 28213209 | W | 2013-08-14 | 2 | |||
| 507246 | 28213209 | O | 2018-08-28 | 161 |