Northern Pygmy Owl

The adult mountain pygmy owl is approximately 15–17 cm (5.9–6.7 in) in length. Males weigh from 48 to 54 g (1.7–1.9 oz); however, reverse sexual dimorphism indicates that adult females are larger in mass reaching 60 to 73 g (2.1–2.6 oz). The wing length of a male is 86–89 mm (3.4–3.5 in) and that of a female is 87–98 mm (3.4–3.8 in), while the tail of both sexes can reach 61–66 mm (2.1–2.6 in). Adult plumage color is similar to that of most pygmy owls. The chest and throat are white, while the face is a deeper brown. Voice: There is limited information regarding specific seasonal calls or songs, pertaining to the mountain pygmy owl. However, it is suggested that vocal behavior observed in the Eurasian pygmy owl (G. passerinum) can be applied to the other pygmy owl species.