NATIONAL ACADEMY OF SCIENCES OF UKRAINE
State Museum of Natural History
Biodiversity Data Centre

Aegolius funereus (Linnaeus, 1758)

Synonym
  • Strix funereus Linnaeus, 1758
Vernacular Name
Boreal Owl, Tengmalm's Owl
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Conservation status
IUCN: LC; Be (II); EUBD (I); CITES (II); RDBUkr: Рідкісні
Value of species
Remarks
Detail
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (extent of occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be fluctuating, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern. The global population is estimated to number > c.1,700,000 individuals which equates to 1,130,000 mature individuals (Rich et al. 2004). The European population is estimated at 90,900-309,000 pairs, which equates to 182,000-619,000 mature individuals (BirdLife International 2015). Europe forms approximately 26% of the global range, so a very preliminary estimate of the global population size is 700,000-2,380,000 mature individuals, although further validation of this estimate is needed. The population is placed in the band 700,000-2,400,000 mature individuals. Trend Justification: The population is suspected to be fluctuating owing to fluctuations in prey populations. In Europe the population size is estimated to be fluctuating (BirdLife International 2015).
Book reference
Experts

Taxonomic branch

Biota
Eukaryota
Animalia
Eumetazoa
Chordata
Gnathostomata
Aves
Strigiformes
Strigidae
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