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They eat small mammals, birds and large insects, and may take a variety of other vertebrates and invertebrates. Mountain pygmy owls occasionally take prey species the same size or larger than themselves (e.g. California quail); however, small to medium-sized birds and small mammals are the norm. They've been observed eating Wilson's warblers. [4]
The Eurasian pygmy owl is usually red-tinged to a greyish-brown with dots on its back. The tail is generally darker than the body with five narrow, whitish bars. It has a small, short head with white to grey eyebrows and yellow eyes. It lacks the ear tufts that many other owls have. There is a white half-collar on the back of the neck.
The genus consists of 29 species distributed worldwide. These are mostly small owls, and some of the species are called "owlets". The genus includes nocturnal, diurnal, and crepuscular species. Birds in this genus mainly hunt large insects and other small prey. [1]
The birds wait on a high perch at night and swoop down on prey. They mainly eat small organisms with a strong focus on small mammals in their diet. Swengel and Swengel (1992) reviewed ten studies that found northern saw-whet owls eating almost exclusively mammals (88% to 100%), with most of the mammals being rodents (85% to 99+%).
This species can adapt to surprisingly small prey where it is the only kind available and to large prey where it is abundant. Eurasian eagle-owls feed most commonly on small mammals weighing 100 g (0.22 lb) or more, although nearly 45% of the prey species recorded have an average adult body mass of less than 100 g (3.5 oz).
The Asian barred owlet is a small owl that sits at 22–25 cm (8.7–9.8 in). [3] The males weigh 150–176 g (0.331–0.388 lb) and the females up to 240 g (0.53 lb). [4] Like most owls in the True owl family, the females are usually larger than the males. [5] They are dark brown or olive-brown with a white throat patch and are densely barred. [5]
Arizona has 13 species of owl, including great horned owls, barn owls and screech owls. Here's where they live and what to do if you encounter one.
Eyesight is a particular characteristic of the owl that aids in nocturnal prey capture. Owls are part of a small group of birds that live nocturnally, but do not use echolocation to guide them in flight in low-light situations. Owls are known for their disproportionally large eyes in comparison to their skulls.