However, in 2003, they moved the bird back to the genus Gymnoglaux based on physical and vocal differences between the bare-legged owl and typical screech-owls.

Finally, in 2008, the genus Margarobyas was proposed, as it was found that Gymnoglaux was a junior synonym of Gymnasio.

It is supposedly differentiated by a darker brown color and more spots, although this subspecies is not generally recognized.

The underparts are gray- to yellow-white, with some brown streaking and occasionally even cross-barring on the sides and breast.

Juvenile bare-legged owls have similar plumage colors to adults, but have fewer white spots.