How do birds make their eggs?
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Bird eggs come in all shapes and sizes, from speckled hummingbird eggs smaller than a jellybean to mango-sized emu eggs. But how do birds make them? We asked bird expert Paul Bartell to help us find the answer.Got a question that’s ova-whelming? Send it to us at BrainsOn.org/contact, and we’ll help crack the case!
How do birds make their eggs?