Table 2.

Summary of sites with maximum mean total noise attenuation (%) for each frequency and season. Maximum mean attenuation was chosen based on post-hoc groups in Fig. 1. For comparisons with two sites sharing a letter grouping, both are shown. For comparisons with no difference between sites, “All” is noted along with the range of attenuation

	Season
Frequency	Summer	Fall	Winter
Low (250 Hz)	Tallgrass Prairie (25%)/ Forest (22%)	Forest (23%)/ Tallgrass Prairie (22%)	Tallgrass Prairie (23%)/ Agriculture (19%)
Mid (500 Hz)	All (19–21%)	Agriculture (22%)/ Forest (16%)	Agriculture (13%)/ Forest (12%)
High (1000 Hz)	Forest (21%)/ Tallgrass Prairie (20%)	Tallgrass Prairie (18%)/ Forest (17%)	All (15–17%)