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

The site was identified as important in 2004 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
Western Capercaillie Tetrao urogallus	LC	resident	1994-2004	15-20 males	C6
Common Crane Grus grus	LC	breeding	1994-2004	20-25 breeding pairs	C6
Eurasian Pygmy-owl Glaucidium passerinum	LC	resident	1994-2004	15-20 breeding pairs	C6
Boreal Owl Aegolius funereus	LC	resident	1994-2004	5-15 breeding pairs	C6
Black Woodpecker Dryocopus martius	LC	resident	1994-2004	25-30 breeding pairs	C6
Merlin Falco columbarius	LC	breeding	1994-2004	2 breeding pairs	C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2004) may differ.

Year	Protected Area	Designation	% overlap with IBA
1999	Ances purvi un meži	Dabas liegums	87
2002	Ances purvi un mezi	Site of Community Importance (Habitats Directive)	94
2004	Ances purvi un mezi	Special Protection Area (Birds Directive)	87

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved deciduous woodland, Mixed woodland, Native coniferous woodland	63
Shrubland	Scrub	21
Grassland	Mesophile grasslands	3
Marine Coastal/Supratidal		major (>10)
Artificial/Terrestrial	Other urban and industrial areas	minor (<10)

1. IUCN Habitat classification.

Land use	% of IBA
forestry	25
tourism/recreation	20
urban/industrial/transport	10
agriculture	1
hunting	major (>10)
nature conservation and research	minor (<10)
military	-

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Irbe valley and Dizpurvs (Latvia). Downloaded from https://datazone.birdlife.org/site/factsheet/irbe-valley-and-dizpurvs-iba-latvia on 23/11/2024.