Trumpeter Swan Cygnets Released At Yellowstone To Help Boost Population
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Though trumpeter swans have never been listed as threatened or endangered under the Endangered Species Act, there long have been concerns about their population numbers. In a bid to boost those numbers, eight young trumpeter swans were recently set free at Alum Creek in Yellowstone National Park's Hayden Valley.
- By NPT Staff - October 16th, 2020 2:00am