SHOW us YOUR PIX here .... Odd, WeiRd ,UnUSuAl or EyE CaTchIng things from your rides

I know they are Robins eggs but why in the world are they bright blue when poor mama robin is trying to hide them from assorted predators?
Wild speculation department: Some wild bird eggs have identifying patterns visible only in the near-UV, which some birds see quite well. These patterns allow the nest owners to tell their own eggs from imposters left in their nests by cuckoos and the like.

Don't know that robins play that game. But in terms of chemical bond structure, blue pigments would be somewhat adjacent to near-UV pigments, and there might well be some overlap in their visible light spectra.

Maybe there's a connection along those lines. Either that, or the robin equivalent of Martha Stewart likes blue, and that's what they all go with.
 
A coyote
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