For the source text click/tap here: Chullin 64
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A new Mishna presents Chizikiya's question: Where in the Torah do we learn that the egg of a bird that is not kosher is prohibited? The Gemara reminds us of bat ha'ya'ana (likely the ostrich or the Eurasian eagle-owl, a bird of prey), one of the birds in the list of non-kosher birds (Vayikra 11:16), where bat means daughter. It implies that the egg of the ya'ana, the unclean bird, is not kosher either. Chizikiya's question may not be necessary because of the principal ha'yotzeh min ha'tameh, tameh, anything produced by a non-kosher animal is also non-kosher.
We explore the halachot of eggs from from different sources.