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matt hopes to capture the sound scapes of northern minnesota. we re here in superior national forest. loons are really common in this area and make this beautiful wailing sound that s iconic. reporter: noise pollution can have an impact on an area s ability to survive. there can t be more than one disturbance every 15 minutes. you can see this kind of low frequency buildup. it s a commercial jet flying really far away. and then down here these thumps are the sound of a grouse drumming. every time the grouse drums, that it s its sound signature. when an airplane flies over and a grouse is trying to call they re competing for space. so the grouse and the airplane interrupt each other. reporter: it ll take months to establish whether areas like boundary waters can achieve the

Northern minnesotaSuperior national forestBeautiful wailingNoise pollutionGrouse drummingEach otherSound signatureBoundary waters