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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
Greater Flamingo Phoenicopterus roseus	LC	winter (2002)	140 unknown	C6
Purple Heron Ardea purpurea	LC	passage (2002)	frequent	C6
Pied Avocet Recurvirostra avosetta	LC	winter (2000)	505–977 unknown	A4i, B1i, C3, C6
Black-winged Stilt Himantopus himantopus	LC	breeding (1999)	39–274 pairs	C6
Little Tern Sternula albifrons	LC	breeding (2002)	4 pairs	C6
Osprey Pandion haliaetus	LC	winter (2001)	frequent	C6
Western Marsh-harrier Circus aeruginosus	LC	resident (2000)	2 pairs	C6
Bluethroat Luscinia svecica	LC	winter (2002)	frequent	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 (2005) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Transportation and service corridors	happe­ning now	few indivi­duals/small area (<10%)	rapid decline (>30% over 3 gener­ations)	low

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

Habitat	% of IBA	Habitat detail
Wetlands (inland)	-	Rivers and streams; Standing brackish and salt water

Land use	% of IBA
other	-
fisheries/aquaculture	-
tourism/recreation	-
water management	-
agriculture	-
hunting	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Mondego Estuary (Portugal). Downloaded from https://datazone.birdlife.org/site/factsheet/mondego-estuary-iba-portugal on 23/12/2024.