[Trektellen.org] – Migration counts & captures

https://www.trektellen.org/count/view/170/20190401

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Natal origins and timing of migration of two passerine species through the southern Alps: inferences from multiple stable isotopes (δ2H, δ13C, δ15N, δ34S) and ringing data – Franzoi – – Ibis – Wiley Online Library

https://onlinelibrary.wiley.com/doi/full/10.1111/ibi.12717?hootPostID=caa8062fe9a20880e78287a0aa8f417f