Long-eared Owl occurs in Northern Hemisphere. The population is decreasing. The major threats are habitat destruction, pollution, poisoning, road accidents as well as competition with other owl species.
■ Listed in Appendix II of Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES, or Washington Convention).
■ Listed in Appendix II of the Bern Convention on the Conservation of European Wildlife and Natural Habitats as a strictly protected fauna species.
See articles about owl autumn migration research in Latvia:
Baumanis J., Celmiņš A., Graubics G., Kazubiernis J., Roze V. 2000. Putnu rudens migrācija Papē 1999. gadā (Autumn bird migration at Pape in 1999). – Putni dabā 10.3: 2–11. (In Latvian, with English summary.)
Graubics G. 2003. Ausainās pūces rudens migrāciju pētījumu 18 gadi (18 years of Long-eared owl migration study). – Rīgas Nacionālais zooloģiskais dārzs 2002. 70.–73. lpp. (In Latvian, with English summary.)
■ Phylum Chordata – chordates
■ Class Aves – birds
■ Order Strigiformes – owls
■ Family Strigidae – typical owls
■ Species Asio otus – Long-eared Owl