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Asio otus

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AVES STRIGIFORMES STRIGIDAE

Scientific Name: Asio otus
Species Authority: (Linnaeus, 1758)
Common Name/s:
English – Long-eared Owl
Taxonomic Notes: Asio otus and A. abyssinicus (Sibley and Monroe 1990, 1993) are retained as separate species contra Cramp (1985) and Dowsett and Forbes-Watson (1993) who include abyssinicus as a subspecies of A. otus.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Assessor/s: BirdLife International
Reviewer/s: Butchart, S. & Symes, A.
Contributor/s:
Justification:
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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to 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.
History:
2009 – Least Concern
2008 – Least Concern
2004 – Least Concern

Geographic Range [top]

Countries:
Native:
Afghanistan; Albania; Algeria; Andorra; Armenia (Armenia); Austria; Azerbaijan; Belarus; Belgium; Bosnia and Herzegovina; Bulgaria; Canada; China; Croatia; Cyprus; Czech Republic; Denmark; Egypt; Estonia; Faroe Islands; Finland; France; Georgia; Germany; Greece; Hungary; India; Iran, Islamic Republic of; Iraq; Ireland; Israel; Italy; Japan; Jordan; Kazakhstan; Korea, Democratic People's Republic of; Korea, Republic of; Kyrgyzstan; Latvia; Lebanon; Liechtenstein; Lithuania; Luxembourg; Macedonia, the former Yugoslav Republic of; Malta; Mexico; Moldova; Mongolia; Montenegro; Morocco; Netherlands; Norway; Pakistan; Palestinian Territory, Occupied; Poland; Portugal; Romania; Russian Federation; Russian Federation; Russian Federation; Serbia (Serbia); Slovakia; Slovenia; Spain; Sweden; Switzerland; Syrian Arab Republic; Taiwan, Province of China; Tajikistan; Tunisia; Turkey; Turkmenistan; Ukraine; United Arab Emirates; United Kingdom; United States; Uzbekistan
Vagrant:
Bermuda; Bhutan; Cuba; Gibraltar; Hong Kong; Iceland; Kuwait; Lao People's Democratic Republic; Myanmar; Nepal; Oman; Qatar; Saint Pierre and Miquelon; Saudi Arabia; Svalbard and Jan Mayen
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Rich et al. (2004) estimated the global population to number 120,000 individuals. In Europe, the breeding population is estimated to number 380,000-810,000 breeding pairs, equating to 1,140,000-2,430,000 individuals (BirdLife International 2004). Europe forms 25-49% of the global range, so a revised estimate of the global population size is 1,500,000-5,000,000 individuals, although further validation of this estimate is needed.
Population Trend: Decreasing

Habitat and Ecology [top]

Systems: Terrestrial
Citation: BirdLife International 2012. Asio otus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 20 May 2013.
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