A Visual Pathway Links Brain Structures Active during Magnetic Compass Orientation in Migratory Birds Heyers, Dominik ; Manns, Martina ; Luksch, Harald ; Güntürkün, Onur ; Mouritsen, Henrik Abstract Publication: PLoS ONE Pub Date: September 2007 DOI: 10.1371/journal.pone.0000937 Bibcode: 2007PLoSO...2..937H