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editorial

. 2019 Nov 22;39(1):161–167. doi: 10.1080/01652176.2019.1697013

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© 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — Two wintering male Eurasian wigeons (Anas penelope) (with a yellowish forehead) among tufted ducks (Aythya fuligula) and Eurasian pochards (A. ferina) on 15 February, 2017 at Nuldernauw, Putten, the Netherlands (photograph by the author).