Reference for Niddah 45:55

למאי נפקא מינה לאיתסורי באחותה

to the kadia and the kipufa and not to the other birds! R. Aha son of R. Ika retorted: No; the examination should take place according to the Rabbis who ruled that kadia and kipufa are regarded as valid births<span class="x" onmousemove="('comment',' Lit., 'yes'. ');">⁴³</span>

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