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Updated: Dec 18, 2025

Probing the Limits of Egg Recognition Using Egg Rejection Experiments Along Phenotypic Gradients
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Age-dependent differences in iris colouration of passerines during autumn migration in Central Europe

Michał Polakowski1, Krzysztof Stępniewski2, Joanna Śliwa-Dominiak1

  • 1Institute of Biology, University of Szczecin, Szczecin, Poland.

Peerj
|June 20, 2020
PubMed

Keywords:
Age determinationAutumn migrationBody mass index (BMI)Eye colour

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