Mondego Estuary

IBA Criteria

Year of most recent IBA criteria assessment: 2002

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
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 breeding pairs C6
Little Tern Sternula albifrons LC breeding 2002 4 breeding pairs C6
Osprey Pandion haliaetus LC winter 2001 frequent C6
Western Marsh-harrier Circus aeruginosus LC resident 2000 2 breeding pairs C6
Bluethroat Luscinia svecica LC winter 2002 frequent C6

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2005 low not assessed not assessed
Was the whole site covered? No State assessed by unset
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Transportation and service corridors utility & service lines happening now small area/few individuals (<10%) very rapid to severe deterioration low

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Not assessed Not assessed Not assessed not assessed
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Mondego Estuary Ramsar Site, Wetland of International Importance 1,518 is identical to site 0


IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Rivers and streams, Standing brackish and salt water -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
other -
fisheries/aquaculture -
tourism/recreation -
water management -
agriculture -
hunting -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Mondego Estuary. Downloaded from on 30/01/2023.