A world hid from man however identified to birds — Science Information, April 13, 1974
What refined sensory cues allow a chicken to navigate … with spectacular accuracy? [Researchers] have discovered that birds can sense small modifications in air stress … and may “see” polarized mild …. In the meantime, biologists on the State University of New York at Stony Brook have discovered that by attaching a pair of small coils across the heads of homing pigeons and altering an utilized magnetic area, they may change the orientation of the birds’ flight.
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Birds seem to navigate utilizing a bunch of sensory cues — from trying on the place of the solar, stars and landmarks to smelling the air and even detecting Earth’s magnetic area (SN: 7/3/15). Scientists are nonetheless unraveling the small print of birds’ magnetic sense. Iron-rich cells throughout the beak have lengthy been suspected to perform as inside compasses (SN: 4/3/18). However current research have prompt that proteins within the retina referred to as cryptochromes permit birds to “see” Earth’s magnetic area (SN: 6/27/16). In lab assessments, cryptochromes from migratory robins had been particularly attentive to magnetic fields (SN: 6/28/21).