
Image from iNaturalist
| Ref | Site code | Season | Date | Count | IBA | Subregional IBA | RAMSAR |
|---|---|---|---|---|---|---|---|
| 30 | 34081821 | S | 1992-01-16 | 331 | 250 | ||
| 87 | 34081821 | W | 1992-06-26 | 373 | 250 | ||
| 116 | 34081821 | S | 1993-01-18 | 303 | 250 | ||
| 173 | 34081821 | W | 1993-07-19 | 305 | 250 | ||
| 272 | 34081821 | S | 1994-01-18 | 312 | 250 | ||
| 371 | 34081821 | W | 1994-07-15 | 372 | 250 | ||
| 468 | 34081821 | S | 1995-01-09 | 218 | |||
| 566 | 34081821 | W | 1995-07-10 | 298 | 250 | ||
| 700 | 34081821 | S | 1996-01-15 | 180 | |||
| 811 | 34081821 | W | 1996-07-18 | 236 | |||
| 945 | 34081821 | S | 1997-02-06 | 266 | 250 | ||
| 1089 | 34081821 | W | 1997-07-03 | 270 | 250 | ||
| 2268 | 34081821 | S | 1998-02-05 | 203 | |||
| 2478 | 34081821 | W | 1998-07-02 | 47 | |||
| 2746 | 34081821 | S | 1999-02-04 | 42 | |||
| 2888 | 34081821 | W | 1999-07-08 | 37 | |||
| 3164 | 34081821 | S | 2000-02-03 | 30 | |||
| 3435 | 34081821 | W | 2000-07-13 | 49 | |||
| 3896 | 34081821 | S | 2001-02-01 | 23 | |||
| 3954 | 34081821 | W | 2001-07-11 | 18 | |||
| 4202 | 34081821 | S | 2002-01-24 | 14 | |||
| 4478 | 34081821 | W | 2002-07-04 | 6 | |||
| 4800 | 34081821 | S | 2003-02-06 | 25 | |||
| 5129 | 34081821 | W | 2003-07-03 | 22 | |||
| 5507 | 34081821 | S | 2004-01-15 | 11 | |||
| 6027 | 34081821 | W | 2004-07-01 | 21 | |||
| 6476 | 34081821 | S | 2005-02-10 | 20 | |||
| 6715 | 34081821 | W | 2005-07-14 | 28 | |||
| 8076 | 34081821 | S | 2006-02-09 | 20 | |||
| 8495 | 34081821 | W | 2006-07-20 | 17 | |||
| 8554 | 34081821 | S | 2007-02-08 | 14 | |||
| 9109 | 34081821 | W | 2007-07-12 | 16 | |||
| 9443 | 34081821 | S | 2008-02-14 | 6 | |||
| 94696 | 34081821 | W | 2008-07-10 | 24 | |||
| 500905 | 34081821 | S | 2009-02-12 | 7 | |||
| 501395 | 34081821 | W | 2009-08-13 | 13 | |||
| 501675 | 34081821 | S | 2010-02-11 | 9 | |||
| 501550 | 34081821 | W | 2010-07-08 | 4 | |||
| 511727 | 34081821 | S | 2011-02-10 | 5 | |||
| 511732 | 34081821 | W | 2011-07-14 | 4 | |||
| 511733 | 34081821 | S | 2012-02-09 | 2 | |||
| 511734 | 34081821 | W | 2012-07-12 | 4 | |||
| 511735 | 34081821 | W | 2013-07-11 | 8 | |||
| 511736 | 34081821 | S | 2014-02-13 | 8 | |||
| 511737 | 34081821 | W | 2014-07-10 | 9 | |||
| 511738 | 34081821 | S | 2015-02-12 | 15 | |||
| 511739 | 34081821 | W | 2015-07-09 | 18 | |||
| 511740 | 34081821 | S | 2016-02-11 | 22 | |||
| 511741 | 34081821 | W | 2016-07-14 | 17 | |||
| 505881 | 34081821 | W | 2016-09-01 | 17 | |||
| 511742 | 34081821 | S | 2017-02-09 | 14 | |||
| 511743 | 34081821 | W | 2017-07-13 | 24 | |||
| 511749 | 34081821 | S | 2018-02-08 | 11 | |||
| 511750 | 34081821 | W | 2018-08-09 | 8 | |||
| 511751 | 34081821 | S | 2019-02-14 | 6 | |||
| 511752 | 34081821 | W | 2019-07-11 | 6 | |||
| 511753 | 34081821 | S | 2020-02-13 | 10 | |||
| 511754 | 34081821 | O | 2020-09-10 | 8 | |||
| 511755 | 34081821 | S | 2021-02-11 | 17 | |||
| 511756 | 34081821 | W | 2021-07-16 | 31 | |||
| 511757 | 34081821 | S | 2022-02-10 | 11 | |||
| 511758 | 34081821 | W | 2022-07-22 | 20 | |||
| 511759 | 34081821 | S | 2023-02-09 | 28 | |||
| 511760 | 34081821 | W | 2023-07-13 | 72 | |||
| 511763 | 34081821 | S | 2024-02-11 | 19 | |||
| 511765 | 34081821 | W | 2024-07-25 | 19 | |||
| 511729 | 34081821 | S | 2025-02-13 | 11 | |||
| 511728 | 34081821 | W | 2025-07-24 | 23 | |||
| 511726 | 34081821 | S | 2025-12-11 | 36 | |||
| 511724 | 34081821 | S | 2026-01-08 | 32 |