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[NB01] Population size of selected bird species
State

Key message
Neutral

Population trends of selected bird species show that the state of the environment in the cultural landscape is still deteriorating, especially in some parts such as Prekmurje and Ljubljansko barje. The population of selected forest bird species is stable, however, a trend of deterioration of its habitat was recorded in recent years, as a result of intensified logging. Bird populations that winter on Slovenian rivers and other water bodies have different trends that are mostly in line with trends of regional biogeographic populations of waterbirds in Europe.

Charts

Figure NB01-1: White Stork (Ciconia ciconia) breeding population size
Sources:

Glej metodologijo, viri št.: 21, 27, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42 (31. 05. 2023)

Show data
white stork (Ciconia ciconia[number of pairs]
1999 201
2000 187
2001 198
2002 191
2003 191
2004 239
2005 192
2006 201
2007 217
2008 237
2009 205
2010 204
2011 219
2012 240
2013 250
2014 267
2015 251
2016 239
2017 237
2018 223
2019 245
2020 259
2021 251
2022 267
Figure NB01-2: Number calling Corncrake (Crex crex) males at the Cerknica Lake (Cerkniško jezero) and the Ljubljana Marshes (Ljubljansko barje)
Sources:

Glej metodologijo, viri št.: 42 (31. 05. 2023)

Show data
Cerknica Lake[number] Ljubljana Marshes[number] Slovenia (Natura 2000)[number]
1999 68 306 608
2000 68 235 530
2001 81 220 501
2002 95 165 440
2003 93 146 430
2004 76 104 391
2005 59 134 366
2006 28 171 363
2007 68 142 368
2008 44 106 326
2009 70 122 276
2010 68 118 254
2011 103 131 330
2012 88 119 322
2013 45 97 252
2014 63 114 278
2015 76 126 318
2016 73 88 293
2017 78 61 226
2018 113 46 282
2019 123 100 324
2020 103 98 267
2021 45 88 189
2022 30 47 106
Figure NB01-3: Winter population size of selected waterbirds: Little grebe (Tachybaptus ruficollis), Cormorant (Phalacrocorax carbo), Great White Egret (Ardea alba), Mallard (Anas platyrhynchos), Tufted duck (Aythya fuligula), Goldeneye (Bucephala clangula) and Goosander (Mergus merganser)
Sources:

Glej metodologijo, viri št.: 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 43, 55 (31. 05. 2023)

Show data
    1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Cerkniško jezero number calling males 70 101 45 83 68 42 45 54 54 65 76 74 59 47 22 54 35   54 82 70 36 50 61 58 62 113 98 103
Ljubljansko barje number calling males 236             238     160 137 104 134 171 142 106 122 118 131 119 97 114 126 88 61 46 80 98
Figure NB01-4: Common Tern (Sterna hirundo) breeding population size
Sources:

Glej metodologijo, viri št.: 23, 28 in 40 (31. 05. 2023)

Show data
  1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Inland 93 136 64 93 57     53           144 91 109 79 99 94 108 129 115 77 90 102 108 167 176 258 191
Coast 22 41 43 48 50 60 53 50 48 44 51 48 41 62 53 49 49 75 53 65 66 83 90 110 111 155 137 197 184 192
Figure NB01-5: Middle-spotted Woodpecker (Dendrocoptes medius) breeding population size at the Mura and the Krakovski gozd-Šentjernejsko polje sites
Sources:

Glej metodologijo, viri št.: 42 (31. 05. 2023)

Show data
IBA/SPA 2005 2007 2009 2010 2011 2013 2014 2015 2016 2017 2018 2019 2020
Mura 34 30 24 33 42 32 28 27 28 23 32 33 37
Krakovski gozd - Šentjernejsko polje 32 64 34 42 41 34 31 29 26 23 31 25 41
Figure NB01-6: Number of calling Scops Owl (Otus scops) males at the Ljubljana Marshes, Kras and Goričko
Sources:

Glej metodologijo, viri št.: 29, 30, 41, 42 (31. 05. 2023)

Show data
Goričko[number] Ljubljansko barje[number] Kras[number]
1997 210
1998 59
1999 39
2000 50
2001 37
2002 42
2003 45
2004 157 33
2006 212
2007 100
2008 46 166
2009 122
2010 57 120
2011 64
2012 55 43 163
2013 55
2014 51 89
2015 69
2016 58 85
2017 69 0
2018 47 62
2019 75
2020 105 104
2021 78
2022 125 99

Methodology

Date of data source summarization
Last modified
11.07.2023
Author(s)

Davorin Tome, Luka Božič, Damijan Denac, Urška Koce, Al Vrezec, Sanja Behrić, Matej Petkovšek