Detection of earthworm prey by Ruff Philomachus pugnax.Published in:Ibis (0019-1019), 2017, v. 159, n. 3, p. 647, doi. 10.1111/ibi.12467By:Onrust, Jeroen;Loonstra, A. H. Jelle;Schmaltz, Lucie E.;Verkuil, Yvonne I.;Hooijmeijer, Jos C. E. W.;Piersma, TheunisPublication type:Article