Rocky Mountain Research Station Publications
RMRS Online Publication
RMRS-RN-3: Logging truck noise near nesting northern goshawks
Grubb, Teryl G.; Pater, Larry L.; Delaney, David K. 1998. Logging truck noise near nesting northern goshawks. Res. Note. RMRS-RN-3. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 2 p.
We measured noise levels of four logging trucks as the trucks passed within approximately 500 m of two active northern goshawk (Accipiter gentilis) nests on the Kaibab Plateau in northern Arizona in 1997. Neither a brooding adult female nor a lone juvenile exhibited any discernable behavioral response to logging truck noise, which peaked at 53.4 and 50.3 decibels (dBA). Spectral analysis showed most of the truck sound energy was in the vicinity of 80 Hz.
Keywords: northern goshawk, Accipiter gentilis, truck noise, sound measurement, disturbance
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Title: RMRS-RN-3:
Logging truck noise near nesting northern goshawks
Electronic Publish Date: August 19, 2008
Last Update: August
19, 2008