An unusual study at CFAES’s Mellinger Research Farm in northeast Ohio is measuring the health of the farm through its sounds. A goal is to see — er, hear — how the farm’s biological diversity changes as its farming practices change. “In a healthy agricultural ecosystem, farming sounds should coexist with sounds of the natural world, says a fact sheet on the study. You can hear “Spring Peepers and Toads, Drainage-way: March” and other recordings on the study’s webpage. CFAES’s Agroecosystems Management Program helps run the farm and is doing the study. AMP, according its website, “seeks to discover balance on Ohio farms” in part by using ecological principles on the farms. (Photo: Eastern meadlowlark, Purestock.)