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For benjamin1: the blue color of robins’ eggs comes from a pigment called biliverdin. This pigment is made the female robin. Female robins with higher levels of this pigment produce more brightly colored eggs. In turn, male robins seem to take better care of newly-hatched birds born from brightly colored eggs.
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I'm so happy you've now seen them. I can't believe how beautifully vibrant the colour is!
I've never seen robin eggs before there really cool!!
Spotted on May 11, 2015 Submitted on May 17, 2015
and 6 other people favorited this spotting
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