A Common Redstart (Phoenicurus phoenicurus) having a pit stop at the island of Helgoland (Germany). (IMAGE)

Proceedings of the National Academy of Sciences

A Common Redstart (Phoenicurus phoenicurus) having a pit stop at the island of Helgoland (Germany).

Caption

A Common Redstart (Phoenicurus phoenicurus) having a pit stop at the island of Helgoland (Germany).

Credit

Image credit: Heiko Schmaljohann (Heligoland Bird Observatory, Wilhelmshaven, Germany)

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