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The site was identified as internationally important for bird conservation in 2002 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 List	Season (year/s of estimate)	Size	IBA criteria
White Stork Ciconia ciconia	LC	breeding (1998–2002)	48–64 pairs	B2, C6
European Honey-buzzard Pernis apivorus	LC	breeding (1998–2002)	11–17 pairs	C6
Red Kite Milvus milvus	LC	breeding (1998–2002)	8–13 pairs	C6
Red Kite Milvus milvus	LC	passage (1998–2002)	10–132 birds	C6
Black Kite Milvus migrans	LC	breeding (1998–2000)	10–13 pairs	C6
Common Kingfisher Alcedo atthis	LC	breeding (1998–2002)	3–22 pairs	C6
Eurasian Wryneck Jynx torquilla	LC	breeding (2000)	35–40 pairs	B2
Grey-faced Woodpecker Picus canus	LC	breeding (1998–2002)	20–35 pairs	C6
Middle Spotted Woodpecker Leiopicus medius	LC	resident (1998–2002)	500 pairs	B3, C6
Saker Falcon Falco cherrug	EN	breeding (1998–2002)	2–4 pairs	C6
Collared Flycatcher Ficedula albicollis	LC	breeding (1996)	1,500–2,000 pairs	B3, C6

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2002. The most recent assessment (2010) is shown below.

State (condition of the trigger species' populations)
Species	Actual vs Reference (units)	% remaining	Result
White Stork Ciconia ciconia	39 / 56 (pairs)	70	moderate
European Honey-buzzard Pernis apivorus	8 / 14 (pairs)	58	poor
Red Kite Milvus milvus	13 / 10 (pairs)	100	good
Milvus migrans	16 / 11 (pairs)	100	good
Picus canus	27 / 27 (pairs)	100	good
Middle Spotted Woodpecker Leiopicus medius	400 / 500 (pairs)	80	moderate
Saker Falcon Falco cherrug	3 / 3 (pairs)	100	good
Collared Flycatcher Ficedula albicollis	1,500 / 1,750 (pairs)	86	moderate

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Not assessed	Not assessed	Not assessed	not assessed

Year	Protected Area	Designation (management category)	% coverage of IBA
1949	Ranšpurk	Národní prírodní rezervace (NPR) (IV)	<1
1949	Cahnov - Soutok	Národní prírodní rezervace (NPR) (IV)	<1
1949	Soutok	National Nature Reserve (IV)	<1
1949	Ranspurk	National Nature Reserve (IV)	<1
1956	Skařiny	Prírodní rezervace (PR) (IV)	<1
1956	Skariny	Nature Reserve (IV)	<1
1994	Stibůrkovská jezera	Prírodní rezervace (PR) (IV)	<1
1994	Františkův rybník	Prírodní rezervace (PR) (IV)	<1
1994	Stiburkovska jezera	Nature Reserve (IV)	<1
2003	Dolní Morava	UNESCO-MAB Biosphere Reserve (UA)	100

Habitat	% of IBA	Habitat detail
Forest	56	Alluvial and very wet forest
Artificial/Terrestrial	26	Arable land
Grassland	11	Humid grasslands
Wetlands (inland)	7	Rivers and streams; Fens, transition mires and springs

Land use	% of IBA
hunting	90
forestry	80
agriculture	5
nature conservation and research	1

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Confluence of the Morava (March) and Dyje (Thaya) rivers - Tvrdonicko (Czechia). Downloaded from https://datazone.birdlife.org/site/factsheet/confluence-of-the-morava-(march)-and-dyje-(thaya)-rivers--tvrdonicko-iba-czechia on 22/12/2024.