When is a blue bird not blue?
By A Mystery Man Writer
Description
Smithsonian asked Scott Sillett, a wildlife biologist at the Smithsonian Migratory Bird Center.
![When is a blue bird not blue?](https://www.ncbluebird.org/wp-content/uploads/2013/12/bluebirds.jpg)
All About Bluebirds
![When is a blue bird not blue?](https://oaklandcountyblog.com/wp-content/uploads/2023/04/F-Bluebirds-1.jpg)
Bluebirds Everywhere! – Oakland County Blog
![When is a blue bird not blue?](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg18G4XYVKGo-nj8I2vJ2eoxYDQmEZVou3vyUSLsjMihIvD0GsRX_d_rZTPj0bSmBD-mp4qxybOizJwwBtQCObjsUeQr81peIU4NnG6_P47_CcrG0VG6-JFLddkN1g5U5oC95Et_KG4npw/s1600/IMG_4661+Black-headed+Grosbeak.jpg)
Pacific NW Birder: March 2011
![When is a blue bird not blue?](https://preview.redd.it/9irrrtzysig81.jpg?width=640&crop=smart&auto=webp&s=56a4ae9173e8d0d0cb2e115824b8665482531d26)
Reasons why i could kick berdlys ass : r/Deltarune
![When is a blue bird not blue?](https://upload.wikimedia.org/wikipedia/commons/f/f4/Blue_jay_in_PP_%2830960%29.jpg)
Blue jay - Wikipedia
![When is a blue bird not blue?](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXUiG9Qs_U7M05yK9ugdhY-k-T63FOvJb7nVIMPOMHLfAMyHq9MyiecuufUQs8DOCvZlTo1-RHOBVr5f9-qs15MeOH1iwLtQmR4DdxSpcaOO3otsxuiUI0jxzqAZcdLHd2aWghb6O1AmA/s1600/IMG_7902+thistle+birds.jpg)
Pacific NW Birder: March 2011
![When is a blue bird not blue?](https://naturalhistory.si.edu/sites/default/files/styles/resource_side/public/media/image/edulsbutterflygardenchip-clarknmnh-smithsonianpd1068x785.jpg.webp?itok=UzqpsHfu)
Butterfly Colors and Biomimicry Smithsonian National Museum of Natural History
![When is a blue bird not blue?](https://www.hillsanddales.org/content/uploads/bluebird.jpg)
Let's Help Our Little Blue Friends - Hills & Dales Estate
![When is a blue bird not blue?](https://images.newscientist.com/wp-content/uploads/2014/12/dn26687-1_800.jpg?width=800)
Light trickery makes bird feathers blue but not red
![When is a blue bird not blue?](https://insider.si.edu/wp-content/uploads/2010/09/2009-4821-CullinanBlueDiamNck-1.jpg)
Smithsonian Insider – Cullinan Blue Diamond Necklace
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