December 2012 – vol. 105, issue 12, pp 703–715 Abstract In Shetland, wintering Slavonian Grebes Podiceps auritus occupy sheltered voes and feed in water depths of less than 20 m over muddy and sandy sediments. Systematic counts found that the wintering population in the islands doubled from just under 100 individuals in 2000/01 to just over 200 in 2011/12; and there is good evidence to assume that it has quadrupled in the past 30 years. ... This article is only available to registered users.To read more, please log in or purchase a subscription.