A small owl without ear hair. Women weigh 35 grams more than men. Brown deformation is above the earthy brown, densely covered with more or less rounded white dots and light spots; The head is slightly paler than the back, and there are two large, round black "false eyes" on the neck, which are white on the top and dark yellow on the bottom; The earth's brown mantle and the back of the mantle have irregular white and dark brown spots. The shoulder blades have fairly blurred pale brown edges. The primary and secondary have narrow, dirty white or pale cushions, and the dark brown to black tail has five to seven white spots. Show some white central breasts, merged with the white abdomen; The lower flanks have some stripes. The brown disc is mottled, lighter in color and darker in color, with no obvious wrinkles. The eyes are bright yellow and the corners of the mouth are yellow horns. The dirty yellow brain is typical of the swelling around the nostrils.
Tarsi has feathers at the base of her grayish-yellow, sparse bristled toes, which have dark horn-like claws and black tips. The reddish-brown form is generally reddish-brown or maroon, the lower part is brownish-white, the white markings are replaced by dark yellow or yellowish brown, and the tail has light brown or light cinnamon markings. Undescribed juvenile. A long series of couplets, Lulu-Lulu-Lulu, sometimes even three notes, are called out at fairly long intervals. The two notes resemble... The Song Mountain Pygmy Owl, but completely different from the Andean Pygmy Owl.
Food and hunting mainly hunt insects and other arthropods, as well as lizards, small mammals and small birds. It flew rapidly from its perch among the dense foliage, attacking its prey at a brief speed. The habitat inhabits cloud forests and cleared areas of mountain forests, from 900 m to the forest line. Status and distribution occur from Costa Rica to western Panama and possibly to eastern Panama; Distractions are not yet fully clear. It is considered fairly common in Costa Rica but less common in Panama.
Geographic variant monotype. It is closely related to the mountain pygmy owl, rather than the subspecies of the andean pygmy owl previously thought. The Ridgeway pygmy owl is large in size and has a long tail, while the Mesoamerican pygmy owl is small in size and has a gray-brown head.