Protection Measures Selection Tool

Do not conduct activities that result in loud or continuous noise above ambient levels or smoke-generating activities within 0.25 mile (or 1,320 feet) of a nest site, PAC or unsurveyed nesting or roosting habitat between March 1 and July 9 (see ASP-5, Airborne Noise Reduction).

This includes activities that generate sound levels 20 or more decibels above ambient sound levels, or activities that generate maximum sound levels above 90 decibels, excluding vehicle back-up alarms. Maximum sound levels are the combined ambient and activity-generated sound levels.