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Project Noah Nature School
Turdus migratorius
Spotted these just before hatching on June 17th.
Edge of the woods, NE Pennsylvania.
Spotted on Jun 17, 2014
Submitted on Jun 28, 2014
5 Comments
The blue egg is so beautiful 😍
They are sooo tiny😁
Wow, I'm so honored that my spotting was chosen to be yesterday's Fact of the Day! Thanks so much!
Beautiful
Congratulations Gina! Your spotting has been chosen for Project Noah Fact of the Day: "Egg hunts and the decoration of eggs are popular Easter traditions. Some eggs are in no need of painting though! Check out the blue eggs of the American robin. The striking blue color of robins’ eggs comes from a pigment called biliverdin. This pigment is produced from a shell gland and is thought to be an indicator of female fitness. Female robins with higher levels of biliverdin produce more brightly colored eggs. In turn, male robins have been shown to take better care of newly-hatched birds born from brightly colored eggs. This suggests that males use egg color as an indication of the healthiness of their mate.
http://www.queensu.ca/alumnireview/artic....
American robin (Turdus migratorius) eggs spotted in Pennsylvania, USA by Project Noah user Gina423"
https://www.facebook.com/projectnoah/pho...