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Location Spain, Islas Canarias
Central coordinates 16o 10.00' West  28o 36.00' North
IBA criteria B1ii, B2, C2, C6
Area 740 ha
Altitude 0 - 180m
Year of IBA assessment 2000


Site description Two rocky islets (Roque de Dentro and Roque de Fuera) located off the north-eastern tip of Tenerife, which support drought-resistant and salt-tolerant vegetation. A copse of dragon's blood tree Dracaena draco exists on one of the islets. Human activities include gathering shellfish and boating.

Key Biodiversity The site is very important for breeding seabirds, and holds the largest Bulweria bulwerii breeding colony in the Canary Islands.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Puffinus assimilis breeding  1987  20 breeding pairs  medium  B2, C6  Not Recognised 
Bulwer's Petrel Bulweria bulwerii breeding  1987  300 breeding pairs  medium  B1ii, B2, C2, C6  Least Concern 
Hydrobates castro breeding  1987  100 breeding pairs  medium  B1ii, B2, C2, C6  Not Recognised 

IBA Monitoring

2008 medium favourable high
Poor - based on little, or potentially unreliable/unrepresentative, data

Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) slow but significant deterioration medium
Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) slow but significant deterioration medium

Puffinus assimilis 20 20 individuals 100 favourable
Bulweria bulwerii Bulwer's Petrel 300 300 individuals 100 favourable
Hydrobates castro 100 100 individuals 100 favourable

Whole area of site (>90%) covered by appropriate conservation designation  A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species  The conservation measures needed for the site are being comprehensively and effectively implemented  high 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Anaga Rural Park 14,419 protected area contains site 10  


IUCN habitat Habitat detail Extent (% of site)
Coastline Rock stacks and islets  100%

Land use

Land-use Extent (% of site)
fisheries/aquaculture 26%
tourism/recreation 26%
hunting -

Protection status National High International High10 ha of IBA covered by Rural Park (Anaga, 14,119 ha). 10 ha of IBA covered by Integral Nature Reserve (Roques de Anaga, 10 ha). 10 ha of IBA covered by Special Protection Area (Anaga, 14,119 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Anaga rocky islets. Downloaded from on 24/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife