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Glaucidium

Trivial name Latin name
Eurasian Pygmy Owl Glaucidium passerinum
Asian Barred Owlet Glaucidium cuculoides
Pearl-spotted Owlet Glaucidium perlatum
Ferruginous Pygmy Owl Glaucidium brasilianum
Ridgway's Pygmy-Owl Glaucidium ridgwayi

comparison of wing and tail configuration1

1 According to Hartmann (2000a, 2000b and 2016)