Is a spotted Owl a mammal?

The spotted owl has an average length of 43 cm (17 in), wingspan of 114 cm (45 in), and weight of 600 g (1.3 lb). Its eggs are a little over 50 mm (2.0 in) long, and are white and smooth with a slightly grainy texture. The spotted owl is similar in appearance to the barred owl, but has cross-shaped markings on the underparts, whereas the barred owl is alternately barred on the breast and streaked on the belly. Barred owls are larger and grayer than spotted owls. In recent years, the California and northern subspecies of spotted owl have been displaced by barred owls (S. varia), which are more aggressive, have a broader diet, and occur in more varied habitats. Though the two species are genetically quite distinct, they may hybridize in areas where displacement is occurring, resulting in an interspecific hybrid owl referred to as a "sparred owl".