Logging truck noise near nesting northern goshawks

Teryl G. Grubb; Larry L. Pater; David K. Delaney

doi:10.2737/RMRS-RN-3

Treesearch

Logging truck noise near nesting northern goshawks

Informally Refereed

Authors:

Teryl G. Grubb, Larry L. Pater, David K. Delaney

Year:

1998

Type:

Research Note

Station:

Rocky Mountain Research Station

DOI:

https://doi.org/10.2737/RMRS-RN-3

Source:

Res. Note. RMRS-RN-3. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 2 p.

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Abstract

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

Citation

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.