What’s Up With Those Bright Blue Eggs?

It seems like birds would want to hide their eggs, but there are hundreds of species that lay blue to blue-green eggs. Thanks to some clever experiments, we’re finally starting to understand why birds might benefit from conspicuously colored eggs.

Hosted by: Michael Aranda

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Sources:
https://doi.org/10.1086/685780
https://doi.org/10.1093/ps/85.3.546
https://doi.org/10.1086/694297
https://doi.org/10.1007/s00265-010-1107-9
https://doi.org/10.1525/auk.2009.09090 
https://doi.org/10.1525/cond.2008.8634
https://doi.org/10.1007/s00265-005-0092-x
https://doi.org/10.1007/s00265-006-0315-9
https://doi.org/10.1111/j.2006.0908-8857.03915.x 
http://en.cnki.com.cn/Article_en/CJFDTotal-XNND199404014.htm
The Beauty and Biology of Egg Color
------- Images: https://www.istockphoto.com/ https://www.storyblocks.com/video https://commons.wikimedia.org/wiki/File:Ficedula_hypoleuca_egg.JPG https://commons.wikimedia.org/wiki/File:Black-headed_weaver_(Ploceus_cucullatus_bohndorffi)_male_nest_building.jpg https://commons.wikimedia.org/wiki/File:Ploceus_cucullatus_MHNT_228_St_Gilles_La_R%C3%A9union.jpg

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