Isle of Conejera and islets of Bledes and Espartar (Ibiza)

IBA Criteria

Year of most recent IBA criteria assessment: 2011

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
European Storm-petrel Hydrobates pelagicus LC breeding 2008 800-1,450 breeding pairs B1ii, B3, C2, C6
Scopoli's Shearwater Calonectris diomedea LC breeding 2008 150-275 breeding pairs C6
Balearic Shearwater Puffinus mauretanicus CR breeding 2001-2005 265-350 breeding pairs A1, A4ii, B1ii, B2, C1, C2, C6
Audouin's Gull Larus audouinii VU breeding 2006 273 breeding pairs A1, A4i, B1i, B2, C1, C2, 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)
2014 very high not assessed not assessed
Was the whole site covered? No State assessed by unset
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Residential and commercial development tourism and recreation areas likely in short term (within 4 years) whole area/population (>90%) very rapid to severe deterioration very high

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

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Illots de Ponent d'Eivissa Site of Community Importance (Habitats Directive) 2,537 protected area contains site 0
Illots de Ponent d'Eivissa Special Protection Area (Birds Directive) 2,537 protected area contains site 147
Illots de Ponent Reserva Natural 155 protected area overlaps with site 0


IUCN Habitat Habitat detail Extent (% of site)
Coastline Sea cliffs and rocky shores, Rock stacks and islets -
Caves and Subterranean Habitats (non-aquatic) Caves -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
hunting -
not utilised -
military -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Isle of Conejera and islets of Bledes and Espartar (Ibiza). Downloaded from on 16/05/2021.