• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 2011 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 List1	Season	Year(s)	Size	IBA criteria
Bearded Vulture Gypaetus barbatus	NT	resident	2010	5 breeding pairs	B2, C2, C6
Egyptian Vulture Neophron percnopterus	EN	non-breeding	1994	22-100 individuals	A1, B1iii, B2, C1, C2, C6
Egyptian Vulture Neophron percnopterus	EN	breeding	2008	26 breeding pairs	A1, B2, C1, C2, C6
Griffon Vulture Gyps fulvus	LC	resident	2008	min 422 breeding pairs	A4ii, B1iii, C2, C6
Red Kite Milvus milvus	LC	resident	2009	min 12 breeding pairs	A1, C1
Red-billed Chough Pyrrhocorax pyrrhocorax	LC	resident	2001	300-450 breeding pairs	B2, C2

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2011) may differ.

Year	Protected Area	Designation	% overlap with IBA
1987	Foz de Burgui	Reserva Natural	<1
1991	Sierra de San Miguel	Special Protection Area (Birds Directive)	<1
1997	Foz de Salvatierra	Site of Community Importance (Habitats Directive)	1
1997	Foz de Biniés	Site of Community Importance (Habitats Directive)	<1
1999	Sierra de San Miguel	Site of Community Importance (Habitats Directive)	<1
2000	Los Valles - Sur	Site of Community Importance (Habitats Directive)	23
2000	Sierras de Los Valles; Aísa y Borau	Site of Community Importance (Habitats Directive)	21
2000	Sierras de Leyre y Orba	Site of Community Importance (Habitats Directive)	16
2000	Río Veral	Site of Community Importance (Habitats Directive)	1
2001	Sierras de Leyre y Orba	Special Protection Area (Birds Directive)	12
2001	Salvatierra - Fozes de Fago y Biniés	Special Protection Area (Birds Directive)	7
2001	Sotos y Carrizales del Río Aragón	Special Protection Area (Birds Directive)	1
2010	Fozes de Fago y Biniés	Paisaje Protegido	7

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved deciduous woodland, Native coniferous woodland	26
Grassland		26
Shrubland	Scrub, Sclerophyllous scrub, garrigue and maquis	26
Rocky areas (eg. inland cliffs, mountain peaks)	Inland cliffs	-

1. IUCN Habitat classification.

Land use	% of IBA
forestry	26
hunting	26
agriculture	-
not utilised	-

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Dos Ríos and Orba mountain ranges (Spain). Downloaded from https://datazone.birdlife.org/site/factsheet/dos-ríos-and-orba-mountain-ranges-iba-spain on 23/11/2024.