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For nearly 30 years, researchers have been banding black petrel fledglings before they make their maiden migration to Ecuador. Only a handful of birds have ever come back.
Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more…
Go to this episode on rnz.co.nz for more details
By RNZ4.8
2424 ratings
For nearly 30 years, researchers have been banding black petrel fledglings before they make their maiden migration to Ecuador. Only a handful of birds have ever come back.
Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more…
Go to this episode on rnz.co.nz for more details

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