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Asymmetrical markings on birds (1 Viewer)

Gretchen

Well-known member
I just saw this on an ABA blog post (here) where a junco had a slight difference in the wing bars on its right and left sides (there's video of the bird if you want to see). I guess it could just be a few feather tips missing?

I had never heard of that before, and wondered if others have heard of or observed asymmetrical markings.
 
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