Azután reservoir

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
Little Bustard Tetrax tetrax NT winter 2006 706-800 individuals A1, C1
Black-crowned Night-heron Nycticorax nycticorax LC breeding 2009 25 breeding pairs B2, C6
Cattle Egret Bubulcus ibis LC resident 2009 1,200-1,500 breeding pairs A4i, B1i, C3
Purple Heron Ardea purpurea LC breeding 2009 16 breeding pairs C6
Egretta garzetta NR resident 2009 45 breeding pairs 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 Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Rios de la margen izquierda del Tajo y berrocales del Tajo Site of Community Importance (Habitats Directive) 13,473 protected area is adjacent to site 0
Río Tajo en Castrejón, islas de Malpica de Tajo y Azután Special Protection Area (Birds Directive) 8,348 protected area overlaps with site 359
Embalse de Azután Wild Fauna Reserve 1,250 protected area contains site 933


IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Standing freshwater, Water fringe vegetation -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
water management -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2019) Important Bird Areas factsheet: Azután reservoir. Downloaded from on 22/07/2019.