Birds see mangetic field?

Findings suggest that migratory birds use their visual system to perceive the reference compass direction of the geomagnetic field and that migratory birds “see” the geomagnetic field.

Citation: Heyers D et el (2007) A Visual Pathway Links Brain Structures Active during Magnetic Compass Orientation in Migratory Birds. PLoS One 2(9): e937. doi:10.1371/journal.pone.0000937

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