|Scientific Name:||Asio flammeus|
|Species Authority:||(Pontoppidan, 1763)|
|Taxonomic Source(s):||del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International.|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Reviewer(s):||Butchart, S. & Symes, A.|
|Facilitator/Compiler(s):||Ekstrom, J., Butchart, S.|
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.
|Previously published Red List assessments:||
Native:Afghanistan; Albania; Algeria; Argentina; Armenia (Armenia); Austria; Azerbaijan; Bahrain; Bangladesh; Belarus; Belgium; Bolivia, Plurinational States of; Bosnia and Herzegovina; Brazil; Bulgaria; Canada; Cayman Islands; Chile; China; Colombia; Croatia; Cuba; Cyprus; Czech Republic; Denmark; Dominican Republic; Ecuador; Egypt; Eritrea; Estonia; Ethiopia; Falkland Islands (Malvinas); Faroe Islands; Finland; France; French Guiana; Georgia; Germany; Greece; Guam; Guatemala; Guinea; Guyana; Haiti; Hungary; Iceland; India; Iran, Islamic Republic of; Iraq; Ireland; Israel; Italy; Japan; Jordan; Kazakhstan; Korea, Democratic People's Republic of; Korea, Republic of; Kuwait; Kyrgyzstan; Lao People's Democratic Republic; Latvia; Lebanon; Libya; Lithuania; Luxembourg; Macedonia, the former Yugoslav Republic of; Maldives; Mali; Malta; Marshall Islands; Mauritania; Mexico; Micronesia, Federated States of ; Moldova; Mongolia; Montenegro; Morocco; Myanmar; Nepal; Netherlands; Northern Mariana Islands; Norway; Oman; Pakistan; Palestinian Territory, Occupied; Paraguay; Peru; Poland; Portugal; Puerto Rico; Romania; Russian Federation; Saint Pierre and Miquelon; Saudi Arabia; Senegal; Serbia (Serbia); Slovakia; Slovenia; South Georgia and the South Sandwich Islands; Spain; Sudan; Suriname; Sweden; Switzerland; Syrian Arab Republic; Taiwan, Province of China; Tajikistan; Tunisia; Turkey; Turkmenistan; Ukraine; United Arab Emirates; United Kingdom; United States (Georgia); United States Minor Outlying Islands; Uruguay; Uzbekistan; Venezuela, Bolivarian Republic of; Viet Nam; Virgin Islands, British; Yemen
Vagrant:Belize; Bermuda; Bhutan; Brunei Darussalam; Cameroon; Cape Verde; Chad; Costa Rica; Gibraltar; Greenland; Hong Kong; Kenya; Liberia; Liechtenstein; Malaysia; Niger; Philippines; Qatar; Singapore; Sri Lanka; Svalbard and Jan Mayen; Thailand; Trinidad and Tobago; Uganda; Virgin Islands, U.S.
|Continuing decline in area of occupancy (AOO):||Unknown|
|Extreme fluctuations in area of occupancy (AOO):||No|
|Estimated extent of occurrence (EOO) - km2:||29300000|
|Continuing decline in extent of occurrence (EOO):||Unknown|
|Extreme fluctuations in extent of occurrence (EOO):||No|
|Continuing decline in number of locations:||Unknown|
|Extreme fluctuations in the number of locations:||No|
|Upper elevation limit (metres):||4300|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The global population is estimated to number > c.2,000,000 individuals (Rich et al. 2004), while national population estimates include: c.100-100,000 breeding pairs in China; < c.1,000 wintering individuals in Korea and c.100-100,000 breeding pairs in Russia (Brazil 2009).
Trend Justification: This species has undergone a large and statistically significant decrease over the last 40 years in North America (-71.2% decline over 40 years, equating to a -26.7% decline per decade; data from Breeding Bird Survey and/or Christmas Bird Count: Butcher and Niven 2007). Note, however, that these surveys cover less than 50% of the species's range in North America.
|Current Population Trend:||Decreasing|
|Citation:||BirdLife International. 2012. Asio flammeus. The IUCN Red List of Threatened Species 2012: e.T22689531A40424982. http://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T22689531A40424982.en . Downloaded on 04 October 2015.|
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