About Glaucidium palmarum Nelson, 1901
The Colima pygmy owl (Glaucidium palmarum Nelson, 1901) measures 13 to 15 cm (5.1 to 5.9 in) in total length. Male individuals weigh 43 to 48 g (1.5 to 1.7 oz), while females are recorded as heavier, though no exact weight range for females has been quantified. The species has brown coloring on its head and back, mostly grayish brown wings, and a darker grayish brown tail. Small dull white spots mark its head. Dull white eyebrows are present on its face, and a pair of dark eye spots can be found on its nape. When the wing is closed, white spots are visible along its edge, and the tail has oval white spots arranged in bands across its surface. The underparts are buffy white and marked with wide cinnamon stripes. This owl is native to western Mexico, where it occurs from central Sonora in the north south to Oaxaca. Its elevational range extends from sea level up to 1,500 m (4,900 ft). It lives in multiple forest types, including thorn forest, tropical deciduous forest, lowland tropical evergreen forest, and the lower sections of humid montane forest. It can also be found in coffee plantations.
