PeerJ Author 135 Points Contributions by role Author 135 Contributions by subject area Ecology Zoology Michał Polakowski PeerJ Author Summary Animal Behavior Biodiversity Biogeography Conservation Biology Ecology Forestry Population Biology Zoology Past or current institution affiliations University of Szczecin Websites Research Gate Google Scholar PeerJ Contributions Articles 1 June 8, 2020 Age-dependent differences in iris colouration of passerines during autumn migration in Central Europe Michał Polakowski, Krzysztof Stępniewski, Joanna Śliwa-Dominiak, Magdalena Remisiewicz https://doi.org/10.7717/peerj.9188 PubMed 32551192