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Just learnt that today myself, this is a songbird that I enjoy. I am curious of what they can teach us about radiation. Theres a lot of articles about them being attracted to a constant radiation source, so it may be a warning if you see the Blue Jays near a place with microwave radiation, they even like to breed when introduced to microwave radiation according to this study lol!!!

https://www.sciencedirect.com/science/article/abs/pii/0031938484900519