spotted owl range

Understanding the California Spotted Owl’s prey base and space use in burned forests is important because fire is frequent in this subspecies’ habitat, and it is not unusual for Male and female Mexican spotted owls are similar in appearance— brown with irregular brown and white spots on the abdomen, back, and head.
While wide population fluctuations may be common for owls, these owl populations have been negatively affected by the loss, degradation, and fragmentation of their habitat as a result of even-aged timber management, urban and suburban development, agriculture development, water development in riparian areas, and mining.Mexican spotted owl populations are also threatened by the potential for catastrophic, stand-replacing fire in some areas. Environmental conservation online system. org/explorer (accessed 17 May 2010).National Biological Information Infrastructure. Prey is taken from the ground and out of trees, and bats may be captured in the air.2, sometimes 1-3, rarely 4. The average length is 41-48 cm (16-19 inches); average wingspan is 107-114 cm (42-45 inches); and average weight is 547-647 grams (19.5-23 ounces). The spotted owl is similar in appearance to the The northern spotted owl has a nearly contiguous range from southwestern Spotted owls occur in a variety of hardwood and coniferous forest habitats, although the species prefers closed-canopy, uneven-aged, late-successional, and old-growth forests. Young: Female remains with young at first; male brings food for female and young. No nest built, makes simple scrape in debris in bottom of site. Union 1998) recognizes 2 genetically distinct forms, the California Spotted-Owl (S. occidentalis) of the Pacific Coast, and Mexican Spotted- Owl (S. lucida), see range above. 1995. They also can take prey on the wing, particularly birds.Mexican spotted owls are monogamous and generally form long-term bonds with their mates. Medium-sized owl typically found in mountainous regions with mixed conifers and oaks.


1994. It has dark brown eyes surrounded by prominent facial disks. The other two subspecies are California spotted owls are small mammal specialists. In Arizona, courtship begins in March and the female lays 2-4 eggs in late March to early April.

Dispersing juveniles are found in a variety of habitats, ranging from high-elevation forests to pinyon-juniper woodlands and riparian areas surrounded by desert grasslands. The listing decision is due by September 30, 2019.The spotted owl is a medium-sized brown owl with a mottled appearance – white spots on the head and breast, and a barred tail. The current ranges are shown in Figure 3. Fewer than 30 breeding pairs were thought to exist in Canada in 2006, and some experts have predicted the imminent extirpation of the species from Canada.A current experiment sanctioned by the USFWS is investigating the suitability of protecting the spotted owl by controlling its competitor, the barred owl. Thorough surveys have been completed in west central Arizona, southern New Mexico, and many of the canyon systems of southern Utah (see David Willey et al.). About ¾ of known California spotted owl locations are on public lands (e.g., National Forests), with the remaining on private timberlands.Spotted owls form monogamous pairs, and each pair defends a territory surrounding a nesting and/or roosting site. Additionally, contaminants, primarily rodenticides from illegal marijuana cultivations, may also affect spotted owls. Some may migrate between breeding and winter seasons, travelling 20-50 km; or they may migrate vertically from high elevations to lower elevations in winter. Low fecundity, due to small clutch size, variability in nesting success, and delayed onset of breeding, also contributes to the problem of declining Mexican spotted owl populations.In 2004, the USFWS designated 3.5 million ha (8.6 million ac) of federal lands in Arizona, Colorado, New Mexico, and Utah as critical habitat for the Mexican spotted owl.

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