English · Shraga Silverstein5) (Vayikra 11:46): "This is the law of the beast and the bird": In which law is the beast similar to the bird, and birds, to the beast? A beast confers tumah by being touched or being carried, and a bird does not confer tumah by being touched or being carried, (but only by being eaten)! A bird confers tumah upon one's clothing (if another stuffs it) into his esophagus; and not, a beast! In which law, then, is the beast similar to the bird, and the bird, to the beast? We are hereby being taught that just as a beast (is slaughtered) by shechitah, so birds (are slaughtered) by shechitah. — If so, (why not say, then, that) just as a beast required two (shechitah) signs (to be severed), so, a bird, requires two, or the greater part of two? It is, therefore, written "This" (i.e., only in this respect (shechitah in general) that they are similar, but not in the other). R. Elazar says: In which law is a beast similar to a bird, and a bird to a beast? To teach us that both (are rendered fit) through the throat. — If so, (why not say, then, that) just as a bird (is "pinched") opposite its nape (viz. Vayikra 5:8), so a beast, opposite its nape; it is, therefore, written (Vayikra 5:8) "its head" — the head of a bird opposite its nape, and not the head of a beast.