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Tip: press play to see the sound's live frequency spectrum in blue over the waveform.
About this sound
Sound recording of Wilson's snipe (Gallinago delicata), alder flycatcher (Empidonax alnorum), and the papery rattling of dragonfly wings along the Muddy River, Denali National Park and Preserve, Alaska. From "The Prescience of Desired Future Conditions," Park Science magazine, Summer 2022 issue (June 22, 2022).
Why parks record sound
The NPS Natural Sounds and Night Skies Division monitors soundscapes in parks across the United States. Natural quiet is treated as a resource to protect, like clean air or dark skies: noise from aircraft, vehicles and machinery can mask animal communication and change the experience of a place.
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Sources & credits
- Listen to one of Griselda's favorite recordings: bird songs and dragonfly wings along the Muddy River by US National Park Service – Public domain