Where did the starlings go? (IMAGE)
Caption
To find out how migrating birds find their way, starlings were relocated from autumn stopovers along the Dutch North Sea coast to Switzerland (red, 1948–1957) and Spain (blue, 1959–1962).
Credit
From: Revisiting Perdeck's massive avian migration experiments debunks alternative social interpretations, https://doi.org/10.1098/rsbl.2024.0217
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