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The site was identified as important in 2010 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Ferruginous Duck Aythya nyroca	NT	breeding	2010	70-200 breeding pairs	A1, B1i, B2, C1, C2
Corncrake Crex crex	LC	breeding	2010	200-600 males	A1, C1, C2, C6
Spotted Crake Porzana porzana	LC	breeding	2010	10-30 breeding pairs	C6
Little Crake Zapornia parva	LC	breeding	2010	10-50 breeding pairs	C6
Black Stork Ciconia nigra	LC	breeding	2010	60-80 breeding pairs	B1i, B2, C2, C6
White Stork Ciconia ciconia	LC	breeding	2010	400-500 breeding pairs	C2, C6
Eurasian Spoonbill Platalea leucorodia	LC	breeding	2010	70-140 breeding pairs	A4i, B1i, B2, C2, C6
Common Little Bittern Ixobrychus minutus	LC	breeding	2010	80-200 breeding pairs	B2, C6
Black-crowned Night Heron Nycticorax nycticorax	LC	breeding	2010	80-300 breeding pairs	C2, C6
Purple Heron Ardea purpurea	LC	breeding	2010	7-20 breeding pairs	C6
Great White Egret Ardea alba	LC	winter	2010	200-250 individuals	C2, C6
Little Egret Egretta garzetta	LC	breeding	2010	120-260 breeding pairs	B1i, C2, C6
Whiskered Tern Chlidonias hybrida	LC	breeding	2010	500-800 breeding pairs	A4i, B1i, B2, C2, C6
European Honey-buzzard Pernis apivorus	LC	breeding	2010	25-35 breeding pairs	B3, C6
Lesser Spotted Eagle Clanga pomarina	LC	breeding	2010	40-50 breeding pairs	C2, C6
Greater Spotted Eagle Clanga clanga	VU	winter	2010	2-3 individuals	B1iii, C2, C6
Western Marsh-harrier Circus aeruginosus	LC	breeding	2010	8-12 breeding pairs	C6
Montagu's Harrier Circus pygargus	LC	breeding	2010	2-3 breeding pairs	C6
Hen Harrier Circus cyaneus	LC	winter	2010	50-70 individuals	C2, C6
White-tailed Sea-eagle Haliaeetus albicilla	LC	breeding	2010	28-30 breeding pairs	B2, C2, C6
Black Kite Milvus migrans	LC	breeding	2010	30-40 breeding pairs	C6
Common Kingfisher Alcedo atthis	LC	breeding	2010	60-80 breeding pairs	B2, C6
Grey-faced Woodpecker Picus canus	LC	resident	2010	300-350 breeding pairs	B2, C6
Middle Spotted Woodpecker Leiopicus medius	LC	resident	2010	1,800-2,200 breeding pairs	B3, C2, C6
Red-backed Shrike Lanius collurio	LC	breeding	2010	15,000-18,000 breeding pairs	B2, C2, C6
Barred Warbler Curruca nisoria	LC	breeding	2010	70-150 breeding pairs	B3, C6
Collared Flycatcher Ficedula albicollis	LC	breeding	2010	10,000-25,000 breeding pairs	B3, C2, C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2010) may differ.

Year	Protected Area	Designation	% overlap with IBA
-	Vrazje Blato	Other	<1
1963	Krapje Ðol	Posebni rezervat	<1
1965	Prašnik	Posebni rezervat	<1
1969	Rakita	Posebni rezervat	<1
1969	Ðol Dražiblato	Posebni rezervat	<1
1990	Lonjsko polje	Park prirode	42
1993	Lonjsko Polje Nature Park	Ramsar Site, Wetland of International Importance	42
2007	Donja Posavina	Other Area	100
2010	Pašnjak Iva	Značajni krajobraz	<1
2013	Donja Posavina	Special Protection Area (Birds Directive)	97
2013	Lonjsko polje	Site of Community Importance (Habitats Directive)	41
2013	Sunjsko polje	Značajni krajobraz	17
2013	Sunjsko polje	Site of Community Importance (Habitats Directive)	16
2013	Sava nizvodno od Hrušćice	Site of Community Importance (Habitats Directive)	2
2013	Dolina Une	Site of Community Importance (Habitats Directive)	1
2013	Ilova	Site of Community Importance (Habitats Directive)	<1

Habitat1	Habitat detail	% of IBA
Artificial/Terrestrial	Arable land, Perennial crops, orchards and groves, Other urban and industrial areas, Ruderal land	40
Forest	Broadleaved deciduous woodland, Alluvial and very wet forest	40
Wetlands (inland)	Standing freshwater, Rivers and streams, Water fringe vegetation	20
Grassland	Humid grasslands	10

1. IUCN Habitat classification.

Land use	% of IBA
forestry	-
agriculture	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lower Posavina (Croatia). Downloaded from https://datazone.birdlife.org/site/factsheet/lower-posavina-iba-croatia on 22/11/2024.