Yeah, the proposed mechanism with cryptochromes works in the bird's retina, but it's unknown if it affects the normal visual field or is separate. There's some

Yeah, the proposed mechanism with cryptochromes works in the bird's retina, but it's unknown if it affects the normal visual field or is separate. There's some cool visualizations of it here: http://www.ks.uiuc.edu/Research/cryptochrome/ http://www.ks.uiuc.edu/Research/cryptochrome/ (from this paper: https://pubmed.ncbi.nlm.nih.gov/20655831/ https://pubmed.ncbi.nlm.nih.gov/20655831/)