Description
The birds of the British Isles and their eggs
Date 1919
Source http://www.flickr.com/photos/biodivlibrary/8264878900
Author Coward, T. A.
Full title The birds of the British Isles and their eggs.
Source: https://commons.wikimedia.org/wiki/File:The_birds_of_the_British_Isles_and_their_eggs_(8264878900).jpg

The boreal owl (Aegolius funereus) is a small owl. In Europe, it is typically known as Tengmalm's owl after Swedish naturalist Peter Gustaf Tengmalm or, more rarely, Richardson's owl after Sir John Richardson. The scientific name is from Latin. The genus name Aegolius is a type of screech owl thought to be a bird of ill omen, and funereus means "funereal". Order: Strigiformes, Family: Strigidae, Genus: Aegolius, Species: Aegolius funereus (Linnaeus, 1758).
Synonyms:
Nyctala tengmalmi
Cryptoglaux tengmalmi
Glaux funerea