Here is another summary article. The orientation to geomagnetic field happens in birds' eyes.
http://www.sciencenews.org/view/generic/id/48895/title/Birds_eyes%2C_not_bea ks%2C_sense_magnetic_fields ---- Join or Leave mou-net:http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives:http://lists.umn.edu/archives/mou-net.html
