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About this sound
Tree Swallow call recorded at the Alluvial Fan in Rocky Mountain National Park. Note that a Dark-eyed Junco (most prominent), Northern Flicker, Steller's Jay, House Wren and American Robin can also be heard in the recording.
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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Thunderstorm Soundscape from Hollowell Park
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Sources & credits
- Tree Swallow (call) by US National Park Service – Public domain