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. 2016 Feb 1;144(9):1879–1888. doi: 10.1017/S0950268816000017

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© Cambridge University Press 2016

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

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Fig. 1. — Map of the St Kilda archipelago, with islands including Hirta, where the focal population of sheep live. Location of the archipelago relative to mainland Scotland is shown in the inset. (The maps were drawn by Rebecca Holland.)