Ibis, 2007 Staff Author(s) Citation Humphreys, E.M., Wanless, S. & Bryant, D.M. 2007. Elevated metabolic costs while resting on water in a surface feeder: the Black-legged Kittiwake Rissa tridactyla. Ibis 149: 111. doi:10.1111/j.1474-919X.2006.00618.x Staff author(s) Liz Humphreys