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The site was identified as important in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
Barnacle Goose Branta leucopsis	LC	non-breeding	2011-2015	19,833-38,254 individuals	A4i, B1i, C2
Greylag Goose Anser anser	LC	non-breeding	2011-2015	32,707-35,403 individuals	A4i, B1i, C3
Greater White-fronted Goose Anser albifrons	LC	non-breeding	2011-2015	174,473-208,617 individuals	A4i, B1i, C3
Smew Mergellus albellus	LC	non-breeding	2011-2015	212-287 individuals	C6
Common Pochard Aythya ferina	VU	breeding	2011-2015	37-45 breeding pairs	A1, B2, C1
Common Pochard Aythya ferina	VU	non-breeding	2011-2015	1,482-2,216 individuals	A1, C1
Common Pochard Aythya ferina	VU	winter	2011-2015	1,385 individuals	B2
Northern Shoveler Spatula clypeata	LC	non-breeding	2011-2015	959-1,077 individuals	B1i, C3
Gadwall Mareca strepera	LC	non-breeding	2011-2015	3,269-5,196 individuals	B1i, C3
Eurasian Wigeon Mareca penelope	LC	non-breeding	2011-2015	21,595-28,342 individuals	B1i, C3
Eurasian Wigeon Mareca penelope	LC	winter	2011-2015	21,519 individuals	B3
European Turtle-dove Streptopelia turtur	VU	breeding	2011-2015	15-26 breeding pairs	A1, C1
Corncrake Crex crex	LC	breeding	2011-2015	28-76 breeding pairs	C6
Common Coot Fulica atra	LC	winter	2011-2015	15,368-22,082 individuals	B2
White Stork Ciconia ciconia	LC	breeding	2009-2014	min 61 breeding pairs	B3, C6
Common Little Bittern Ixobrychus minutus	LC	breeding	2011-2015	4-6 breeding pairs	C6
Great White Egret Ardea alba	LC	non-breeding	2011-2015	276-367 individuals	C6
Eurasian Curlew Numenius arquata	NT	winter	2011-2015	1,796 individuals	B2
Black Tern Chlidonias niger	LC	breeding	2011-2015	236-264 breeding pairs	C6
Osprey Pandion haliaetus	LC	non-breeding	2011-2015	12-13 individuals	C6
White-tailed Sea-eagle Haliaeetus albicilla	LC	non-breeding	2011-2015	4-6 individuals	C6
Common Kingfisher Alcedo atthis	LC	breeding	2011-2015	41-73 breeding pairs	B2, C6
Peregrine Falcon Falco peregrinus	LC	non-breeding	2011-2015	13-15 individuals	C6
Marsh Warbler Acrocephalus palustris	LC	breeding	2011-2015	1,030-1,362 breeding pairs	B3
Common Grasshopper-warbler Locustella naevia	LC	breeding	2011-2015	95-117 breeding pairs	B3
Bluethroat Luscinia svecica	LC	breeding	2011-2015	260 breeding pairs	C6
A4iii Species group - waterbirds	n/a	non-breeding	2011-2015	267,047-320,381 individuals	A4iii, C4

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2016).

Pressure (threats to the trigger species and/or their habitats)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Agricultural expansion and intensification	livestock farming and ranching (includes forest grazing) - agro-industry grazing, ranching or farmin	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Climate change and severe weather	habitat shifting and alteration	happening now	majority/most of area/population (50-90%)	no or imperceptible deterioration	low
Energy production and mining	renewable energy	likely in short term (within 4 years)	small area/few individuals (<10%)	no or imperceptible deterioration	low
Human intrusions and disturbance	recreational activities	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high
Invasive and other problematic species and genes	invasive non-native/alien species/diseases - unspecified species	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Natural system modifications	dams & water management/use - abstraction of ground water (agricultural use)	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Natural system modifications	other ecosystem modifications	likely in short term (within 4 years)	some of area/population (10-49%)	moderate to rapid deterioration	medium
Pollution	agricultural & forestry effluents - nutrient loads	likely in short term (within 4 years)	small area/few individuals (<10%)	no or imperceptible deterioration	low
Residential and commercial development	tourism and recreation areas	likely in short term (within 4 years)	some of area/population (10-49%)	moderate to rapid deterioration	medium
Transportation and service corridors	flight paths	likely in short term (within 4 years)	whole area/population (>90%)	slow but significant deterioration	high
Transportation and service corridors	roads and railroads	likely in long term (beyond 4 years)	small area/few individuals (<10%)	very rapid to severe deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation	Management planning	Other conservation action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A management plan exists but it is out of date or not comprehensive	Some limited conservation initiatives are in place	medium

For more information about IBA conservation status, please click here

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Rijntakken. Downloaded from http://datazone.birdlife.org/site/factsheet/rijntakken-iba-netherlands on 28/09/2023.