Ae·go·li·us | \ ē-ˈgō-lē-əs \

Definition of Aegolius 

: a genus of small northern owls including the saw-whet owl

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First Known Use of Aegolius

1862, in the meaning defined above

History and Etymology for Aegolius

borrowed from New Latin, going back to Latin aegōlios, an owl (Pliny), borrowed from Greek aigōliós, aigṓlios “barn owl”

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The first known use of Aegolius was in 1862

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