Hullin 139: A Nest on Your Head

Consecrated birds are exempt from the mitzvah of sending away the mother bird -- what is the case? Well, what if a person consecrated the baby birds in the nest? Returning them to the nest if the mother bird returns to them, then there's no requirement to send her away anyway! Maybe he's consecrating the mother bird. Plus, what happens if a consecrated bird escapes to the wild?! Note that the Gemara narrows the mishnah's halakhah to a very specific case, in contrast to the original phrasing. Also, the case of finding a nest in the head of a person. And the ostensible sources, or allusions, anyway, in the Torah, for Moshe, Haman, Esther, and Mordechai. [Where's Where? Papuniya]