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RECOMMENDED BUFFER ZONES AND SEASONAL RESTRICTIONS <br /> BALD EAGLE <br /> Nest Site: <br /> No surface occupancy(beyond that which historically occurred in the area; see `Definitions' below) <br /> within ''/4 mile radius of active nests (see `Defmitions' below). Seasonal restriction to human <br /> encroachment(see `Definitions' below)within %2 mile radius of active nests from October 15 through <br /> July 31. This closure is more extensive than the National Bald Eagle Management Guidelines (USFWS <br /> 2007)due to the generally open habitat used by Colorado's nesting bald eagles. <br /> Winter Night Roost: <br /> No human encroachment from November 15 through March 15 within '/4 mile radius of an active <br /> winter night roost(see `Defmitions' below) if there is no direct line of sight between the roost and the <br /> encroachment activities. No human encroachment from November 15 through March 15 within 'h <br /> mile radius of an active winter night roost if there is a direct line of sight between the roost and the <br /> encroachment activities. If periodic visits(such as oil well maintenance work) are required within the <br /> buffer zone after development, activity should be restricted to the period between 1000 and 1400 hours <br /> from November 15 to March 15. <br /> Hunting Perch: <br /> Diurnal hunting perches (see `Definitions' below)associated with important foraging areas should also <br /> be protected from human encroachment. Preferred perches may be at varying distances from human <br /> encroachment and buffer areas will vary. Consult the Colorado Division of Wildlife for <br /> recommendations for specific hunting perches. <br /> GOLDEN EAGLE <br /> Nest Site: <br /> No surface occupancy(beyond that which historically occurred in the area)within '/4 mile radius of <br /> active nests. Seasonal restriction to human encroachment within %2 mile radius of active nests from <br /> December 15 through July 15. <br /> OSPREY <br /> Nest Site: <br /> No surface occupancy(beyond that which historically occurred in the area)within '/4 mile radius of <br /> active nests. Seasonal restriction to human encroachment within '/4 mile radius of active nests from <br /> April 1 through August 31. Some osprey populations have habituated and are tolerant to human <br /> activity in the immediate vicinity of their nests. <br /> FERRUGINOUS HAWK <br /> Nest Site: <br /> No surface occupancy(beyond that which historically occurred in the area)within '/2 mile radius of <br /> active nests. Seasonal restriction to human encroachment within '/mile radius of active nests from <br /> February 1 through July 15. This species is especially prone to nest abandonment during incubation if <br /> disturbed. <br /> RED-TAILED HAWK <br /> Nest Site: <br /> No surface occupancy(beyond that which historically occurred in the area)within 1/3 mile radius of <br /> active nests. Seasonal restriction to human encroachment within 1/3 mile radius of active nests from <br /> February 15 through July 15. Some members of this species have adapted to urbanization and may <br />