Editing European robin (section)

=== Magnetoreception ===
[[File:Effect of RF interference on Magnetoreception in Birds.svg|thumb|upright=1.5|Very weak [[Electromagnetic interference|radio-frequency interference]] prevents migratory robins from orienting correctly to the [[Earth's magnetic field]]. Since this would not interfere with an iron compass, the experiments imply that the birds use a radical-pair mechanism.<ref name="Hore Mouritsen 2022"/>]]

The avian magnetic compass of the robin has been extensively researched and uses vision-based [[magnetoreception]], in which the robin's ability to sense the magnetic field of the Earth for navigation is affected by the light entering the bird's eye. The physical mechanism of the robin's magnetic sense involves [[quantum entanglement]] of electron spins in [[cryptochrome]] in the bird's eyes.<ref name=Hore2016>{{Cite journal |last1=Hore |first1=Peter J. |author1-link=Peter Hore (chemist) |last2=Mouritsen |first2=Henrik |date=5 July 2016 |title=The Radical-Pair Mechanism of Magnetoreception |journal=Annual Review of Biophysics |volume=45 |issue=1 |pages=299–344 |doi=10.1146/annurev-biophys-032116-094545 |pmid=27216936 |s2cid=7099782 |url=https://ora.ox.ac.uk/objects/uuid:c1e3c8ca-98b3-4e9d-8efd-0b9ad9b965eb |doi-access=free }}</ref><ref name="Hore Mouritsen 2022">
{{cite journal
 | last1 = Hore | first1 = Peter J
 | last2 = Mouritsen | first2 = Henrik
 | author1-link = Peter Hore (chemist)
 | title = The quantum nature of bird migration
 | date = April 2022
 | journal = [[Scientific American]]
 | volume = 326
 | issue = 4
 | pages = 26–31
 | doi = 10.1038/scientificamerican0422-26
 | issn = 0036-8733
 | url = https://www.scientificamerican.com/article/how-migrating-birds-use-quantum-effects-to-navigate/
 | access-date = 29 January 2023
}} Web version published under title "How migrating birds use quantum effects to navigate".
</ref>