What are the signs of a kosher bird? Does one need to have all 4 signs for it to be kosher or is it enough to have only one or some of them?
This month’s learning is sponsored by Marci Glazer in loving memory of her teacher and chevruta, Rachel Brodie, Rachel Aviva bat Devora Chana, on her 4th yahrzeit. “She brought her love of Torah to thousands of people in her all-too-short life. A lover of Midrash, she still invited me on this Daf Yomi journey.”
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This month’s learning is sponsored by Marci Glazer in loving memory of her teacher and chevruta, Rachel Brodie, Rachel Aviva bat Devora Chana, on her 4th yahrzeit. “She brought her love of Torah to thousands of people in her all-too-short life. A lover of Midrash, she still invited me on this Daf Yomi journey.”
Chullin 61
מָה נֶשֶׁר מְיוּחָד שֶׁאֵין לוֹ אֶצְבַּע יְתֵרָה וְזֶפֶק וְאֵין קוּרְקְבָנוֹ נִקְלָף וְדוֹרֵס וְאוֹכֵל – טָמֵא, אַף כׇּל כַּיּוֹצֵא בּוֹ – טָמֵא. תּוֹרִין שֶׁיֵּשׁ לָהֶן אֶצְבַּע יְתֵרָה וְזֶפֶק וְקוּרְקְבָן נִקְלָף וְאֵין דּוֹרְסִין וְאוֹכְלִין – טְהוֹרִין, אַף כׇּל כַּיּוֹצֵא בָּהֶן – טְהוֹרִין. אָמַר אַבָּיֵי: לֹא נֶאֱמַר פֵּירוּשָׁן מִדִּבְרֵי תוֹרָה אֶלָּא מִדִּבְרֵי סוֹפְרִים.
Just as a nesher is unique in that it has no extra digit or crop, and its gizzard cannot be peeled, and it claws its prey and eats it, and it is non-kosher, so too, all like birds with these four signs are non-kosher. And just as doves and pigeons, which have an extra digit and a crop, and whose gizzard can be peeled, and do not claw their food and eat it, are kosher, as they are fit for sacrifice on the altar (see Leviticus 1:14), so too, all like birds with these four signs are kosher. If so, why does the mishna state that the signs were not stated in the Torah? Abaye said: The mishna means that the explanation of the signs of a kosher bird was not stated in the Torah. Rather, one learns it from the statements of the Sages, i.e., the baraita.
תָּנֵי רַבִּי חִיָּיא: עוֹף הַבָּא בְּסִימָן אֶחָד טָהוֹר, לְפִי שֶׁאֵין דּוֹמֶה לְנֶשֶׁר. נֶשֶׁר דְּלֵית לֵיהּ כְּלָל – הוּא דְּלָא תֵּיכוֹל, הָא אִיכָּא דְּאִית לֵיהּ חַד – תֵּיכוֹל.
Rabbi Ḥiyya teaches: A bird that comes before a person with one sign of a kosher bird, and which is not listed in the Torah as non-kosher, is kosher, since it is unlike a nesher. The verse did not need to state that the nesher is non-kosher, since one could have inferred this from the list of other non-kosher birds. Rather, the verse mentions the nesher specifically to indicate that it is only a bird like a nesher, which has none of the signs of a kosher bird, that you shall not eat. But if there is a bird that has even one of the signs, you may eat it.
וְלֵילַף מִתּוֹרִין: מָה תּוֹרִין דְּאִיכָּא כּוּלְּהוּ אַרְבְּעָה, אַף הָכָא נָמֵי עַד דְּאִיכָּא כּוּלְּהוּ אַרְבְּעָה?
The Gemara asks: But why learn specifically from the case of a nesher? Let one derive the opposite from the case of doves: Just as doves, which the Torah mentions explicitly as kosher, have all four signs, so too here, no other bird is kosher unless it has all four signs.
אִם כֵּן, שְׁאָר עוֹפוֹת טְמֵאִין דִּכְתַב רַחֲמָנָא לְמָה לִי?
The Gemara responds: If it is so that one learns from the case of a dove, why do I need the rest of the non-kosher birds that the Merciful One wrote? Since none of them has all four signs of a kosher bird, their non-kosher status could simply be inferred from the case of a dove. Rather, since the Torah states explicitly that they are non-kosher, it follows that one does not learn from the case of a dove.
וְנֵילַף מִינַּיְיהוּ: מָה הָתָם תְּלָתָא וְלָא אָכְלִינַן, אַף כֹּל תְּלָתָא וְלָא נֵיכוֹל, וְכׇל שֶׁכֵּן תְּרֵי וְחַד?
The Gemara objects: But let us derive instead from them, i.e., the rest of the non-kosher birds, which each have only three signs, the following: Just as there, those birds have three of the signs of a kosher bird mentioned in the mishna, and we still do not eat them, so too, all other birds that have three signs should have the same halakhic status, and we will not eat them. And all the more so should this apply to a bird that has only two signs or one.
אִם כֵּן, עוֹרֵב, דִּכְתַב רַחֲמָנָא, לְמָה לִי? הַשְׁתָּא דְּאִית לֵיהּ תְּלָתָא לָא אָכְלִינַן, דְּאִית לֵיהּ תְּרֵי מִיבַּעְיָא?
The Gemara responds: If so, why do I need the crow that the Merciful One wrote among the non-kosher birds? Now that it is established that we do not eat any bird that has three signs, is it necessary to mention the crow, which has only two? Rather, those birds explicitly listed as non-kosher are prohibited, and all other birds with any number of signs are kosher.
וְלֵילַף מֵעוֹרֵב: מָה הָתָם תְּרֵי לָא, אַף כֹּל תְּרֵי לָא? אִם כֵּן, פֶּרֶס וְעׇזְנִיָּה דִּכְתַב רַחֲמָנָא לְמָה לִי? הַשְׁתָּא דְּאִית לֵיהּ תְּרֵי לָא אָכְלִינַן, דְּאִית לֵיהּ חַד מִיבַּעְיָא!
The Gemara objects: But one should derive instead from a crow: Just as there, a bird with two signs is not kosher, so too any other bird that has only two signs is not kosher. The Gemara responds: If so, why do I need the peres and the ozniyya that the Merciful One wrote among the non-kosher birds? Now that it is established that we do not eat any bird that has two signs, is it necessary to mention these birds, which have only one? Rather, even birds that have only one sign are kosher, save those mentioned explicitly in the Torah as non-kosher.
וְנִיגְמַר מִפֶּרֶס וְעׇזְנִיָּה? אִם כֵּן, נֶשֶׁר דִּכְתַב רַחֲמָנָא לְמָה לִי? הַשְׁתָּא דְּאִית לֵיהּ חַד לָא אָכְלִינַן, דְּלֵית לֵיהּ כְּלָל מִיבַּעְיָא! אֶלָּא נֶשֶׁר דְּלֵית לֵיהּ כְּלָל – הוּא דְּלָא תֵּיכוֹל, הָא דְּאִית לֵיהּ חַד – אֱכוֹל.
The Gemara objects: But let us learn instead from the peres and ozniyya themselves that all other birds with only one sign are non-kosher. The Gemara responds: If so, why do I need the nesher that the Merciful One wrote? Now that it is established that we do not eat any bird that has one sign, is it necessary to mention the nesher, which has none? Rather, the Torah mentions the nesher to indicate that it is a nesher, which has none of the signs of a kosher bird, that you shall not eat. But if you find any bird that has even one of the signs, you may eat it.
וְאֶלָּא, טַעְמָא דִּכְתַב רַחֲמָנָא נֶשֶׁר, הָא לָאו הָכִי הֲוָה אָמֵינָא: לֵילַף מִפֶּרֶס וְעׇזְנִיָּה? הָוֵה לֵיהּ פֶּרֶס וְעׇזְנִיָּה שְׁנֵי כְתוּבִין הַבָּאִין כְּאֶחָד, וּשְׁנֵי כְּתוּבִין הַבָּאִין כְּאֶחָד אֵין מְלַמְּדִין.
The Gemara objects: But if so, the reason for eating birds with even one sign is only that the Merciful One wrote: “Nesher.” One can infer, then, that if not for this, I would say: Derive from the peres and ozniyya that any bird with one sign is non-kosher. But that cannot be, since the peres and ozniyya are two verses that come as one, i.e., that teach the same matter, and as a rule, two verses that come as one do not teach a principle.
גְּמִירִי, דְּאִיכָּא בְּהַאי לֵיכָּא בְּהַאי, וּדְאִיכָּא בְּהַאי לֵיכָּא בְּהַאי.
The Gemara responds: It is learned as a tradition that the sign present in this, the peres, is absent in that, the ozniyya, and that which is present in that is absent in this. Accordingly, this is not a case of two verses that come as one, since each case would teach only that any other bird with only its respective sign is non-kosher. Consequently, it would have been possible to derive from them that any bird with only one sign is non-kosher. The verse therefore states: “Nesher,” to indicate otherwise.
מִכְּדֵי עֶשְׂרִים וְאַרְבָּעָה עוֹפוֹת טְמֵאִים הָווּ, אִי אֶפְשָׁר דְּחַד דְּאִיכָּא בְּהָנָךְ לֵיכָּא בְּהָנֵי, וְהָווּ לְהוּ שְׁנֵי כְּתוּבִים הַבָּאִים כְּאֶחָד.
The Gemara persists: Now, there are twenty-four non-kosher birds mentioned in the verses. It is impossible that the one sign present in these, the peres and ozniyya, respectively, is absent in all those other birds. Consequently, the mentioning of the peres, ozniyya, and the other birds constitutes two verses that come as one. If so, one could not have derived from the cases of the peres and ozniyya that a bird with one sign is not kosher, and the inclusion of the nesher is unnecessary.
גְּמִירִי: עֶשְׂרִים וְאַרְבָּעָה עוֹפוֹת טְמֵאִים הָווּ, וְאַרְבָּעָה סִימָנִין. תְּלָתָא הָדְרִי בְּכוּלְּהוּ, עֶשְׂרִים מֵהֶם שְׁלֹשָׁה שְׁלֹשָׁה, וּתְרֵי בְּעוֹרֵב, חַד בְּפֶרֶס וְחַד בְּעׇזְנִיָּה, דְּאִיתֵיהּ בְּהָא לֵיתֵיהּ בְּהָא. מַהוּ דְּתֵימָא לֵילַיף מִינֵּיהּ – כְּתַב רַחֲמָנָא ״נֶשֶׁר״, נֶשֶׁר דְּלֵית לֵיהּ כְּלָל הוּא דְּלָא תֵּיכוֹל, הָא אִיכָּא דְּאִית לֵיהּ חַד – אֱכוֹל.
The Gemara responds: It is learned as a tradition that there are twenty-four non-kosher birds, and four signs of a kosher bird. The same three signs can be found in all of them, with the exception of either the peres or the ozniyya. Twenty of them have all three signs, and two of those signs can be found in a crow. One sign is found in a peres and one in an ozniyya, and the sign present in this is absent in that, i.e., one of them has the fourth sign, which is absent from the other twenty-three non-kosher birds. Lest you say: Derive from it that any other bird with only that sign is non-kosher, the Merciful One wrote about the nesher to indicate: It is a nesher, which has none of the signs of a kosher bird, that you shall not eat. But if there is any bird that has even one of the signs, you may eat it.
אֶלָּא, תּוֹרִין דִּכְתַב רַחֲמָנָא לְמָה לִי? אָמַר רַב עוּקְבָא בַּר חָמָא: לְקׇרְבָּן. אָמַר רַב נַחְמָן:
The Gemara asks: But if one learns from nesher that a bird with even one sign is kosher, why do I need the doves that the Merciful One wrote are kosher, which have all four? Rav Ukva bar Ḥama said: The dove was not mentioned to teach that it is kosher, but rather to teach that it is the only bird fit to be sacrificed as an offering. Rav Naḥman says:
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Chullin 61
מָה נֶשֶׁר מְיוּחָד שֶׁאֵין לוֹ אֶצְבַּע יְתֵרָה וְזֶפֶק וְאֵין קוּרְקְבָנוֹ נִקְלָף וְדוֹרֵס וְאוֹכֵל – טָמֵא, אַף כׇּל כַּיּוֹצֵא בּוֹ – טָמֵא. תּוֹרִין שֶׁיֵּשׁ לָהֶן אֶצְבַּע יְתֵרָה וְזֶפֶק וְקוּרְקְבָן נִקְלָף וְאֵין דּוֹרְסִין וְאוֹכְלִין – טְהוֹרִין, אַף כׇּל כַּיּוֹצֵא בָּהֶן – טְהוֹרִין. אָמַר אַבָּיֵי: לֹא נֶאֱמַר פֵּירוּשָׁן מִדִּבְרֵי תוֹרָה אֶלָּא מִדִּבְרֵי סוֹפְרִים.
Just as a nesher is unique in that it has no extra digit or crop, and its gizzard cannot be peeled, and it claws its prey and eats it, and it is non-kosher, so too, all like birds with these four signs are non-kosher. And just as doves and pigeons, which have an extra digit and a crop, and whose gizzard can be peeled, and do not claw their food and eat it, are kosher, as they are fit for sacrifice on the altar (see Leviticus 1:14), so too, all like birds with these four signs are kosher. If so, why does the mishna state that the signs were not stated in the Torah? Abaye said: The mishna means that the explanation of the signs of a kosher bird was not stated in the Torah. Rather, one learns it from the statements of the Sages, i.e., the baraita.
תָּנֵי רַבִּי חִיָּיא: עוֹף הַבָּא בְּסִימָן אֶחָד טָהוֹר, לְפִי שֶׁאֵין דּוֹמֶה לְנֶשֶׁר. נֶשֶׁר דְּלֵית לֵיהּ כְּלָל – הוּא דְּלָא תֵּיכוֹל, הָא אִיכָּא דְּאִית לֵיהּ חַד – תֵּיכוֹל.
Rabbi Ḥiyya teaches: A bird that comes before a person with one sign of a kosher bird, and which is not listed in the Torah as non-kosher, is kosher, since it is unlike a nesher. The verse did not need to state that the nesher is non-kosher, since one could have inferred this from the list of other non-kosher birds. Rather, the verse mentions the nesher specifically to indicate that it is only a bird like a nesher, which has none of the signs of a kosher bird, that you shall not eat. But if there is a bird that has even one of the signs, you may eat it.
וְלֵילַף מִתּוֹרִין: מָה תּוֹרִין דְּאִיכָּא כּוּלְּהוּ אַרְבְּעָה, אַף הָכָא נָמֵי עַד דְּאִיכָּא כּוּלְּהוּ אַרְבְּעָה?
The Gemara asks: But why learn specifically from the case of a nesher? Let one derive the opposite from the case of doves: Just as doves, which the Torah mentions explicitly as kosher, have all four signs, so too here, no other bird is kosher unless it has all four signs.
אִם כֵּן, שְׁאָר עוֹפוֹת טְמֵאִין דִּכְתַב רַחֲמָנָא לְמָה לִי?
The Gemara responds: If it is so that one learns from the case of a dove, why do I need the rest of the non-kosher birds that the Merciful One wrote? Since none of them has all four signs of a kosher bird, their non-kosher status could simply be inferred from the case of a dove. Rather, since the Torah states explicitly that they are non-kosher, it follows that one does not learn from the case of a dove.
וְנֵילַף מִינַּיְיהוּ: מָה הָתָם תְּלָתָא וְלָא אָכְלִינַן, אַף כֹּל תְּלָתָא וְלָא נֵיכוֹל, וְכׇל שֶׁכֵּן תְּרֵי וְחַד?
The Gemara objects: But let us derive instead from them, i.e., the rest of the non-kosher birds, which each have only three signs, the following: Just as there, those birds have three of the signs of a kosher bird mentioned in the mishna, and we still do not eat them, so too, all other birds that have three signs should have the same halakhic status, and we will not eat them. And all the more so should this apply to a bird that has only two signs or one.
אִם כֵּן, עוֹרֵב, דִּכְתַב רַחֲמָנָא, לְמָה לִי? הַשְׁתָּא דְּאִית לֵיהּ תְּלָתָא לָא אָכְלִינַן, דְּאִית לֵיהּ תְּרֵי מִיבַּעְיָא?
The Gemara responds: If so, why do I need the crow that the Merciful One wrote among the non-kosher birds? Now that it is established that we do not eat any bird that has three signs, is it necessary to mention the crow, which has only two? Rather, those birds explicitly listed as non-kosher are prohibited, and all other birds with any number of signs are kosher.
וְלֵילַף מֵעוֹרֵב: מָה הָתָם תְּרֵי לָא, אַף כֹּל תְּרֵי לָא? אִם כֵּן, פֶּרֶס וְעׇזְנִיָּה דִּכְתַב רַחֲמָנָא לְמָה לִי? הַשְׁתָּא דְּאִית לֵיהּ תְּרֵי לָא אָכְלִינַן, דְּאִית לֵיהּ חַד מִיבַּעְיָא!
The Gemara objects: But one should derive instead from a crow: Just as there, a bird with two signs is not kosher, so too any other bird that has only two signs is not kosher. The Gemara responds: If so, why do I need the peres and the ozniyya that the Merciful One wrote among the non-kosher birds? Now that it is established that we do not eat any bird that has two signs, is it necessary to mention these birds, which have only one? Rather, even birds that have only one sign are kosher, save those mentioned explicitly in the Torah as non-kosher.
וְנִיגְמַר מִפֶּרֶס וְעׇזְנִיָּה? אִם כֵּן, נֶשֶׁר דִּכְתַב רַחֲמָנָא לְמָה לִי? הַשְׁתָּא דְּאִית לֵיהּ חַד לָא אָכְלִינַן, דְּלֵית לֵיהּ כְּלָל מִיבַּעְיָא! אֶלָּא נֶשֶׁר דְּלֵית לֵיהּ כְּלָל – הוּא דְּלָא תֵּיכוֹל, הָא דְּאִית לֵיהּ חַד – אֱכוֹל.
The Gemara objects: But let us learn instead from the peres and ozniyya themselves that all other birds with only one sign are non-kosher. The Gemara responds: If so, why do I need the nesher that the Merciful One wrote? Now that it is established that we do not eat any bird that has one sign, is it necessary to mention the nesher, which has none? Rather, the Torah mentions the nesher to indicate that it is a nesher, which has none of the signs of a kosher bird, that you shall not eat. But if you find any bird that has even one of the signs, you may eat it.
וְאֶלָּא, טַעְמָא דִּכְתַב רַחֲמָנָא נֶשֶׁר, הָא לָאו הָכִי הֲוָה אָמֵינָא: לֵילַף מִפֶּרֶס וְעׇזְנִיָּה? הָוֵה לֵיהּ פֶּרֶס וְעׇזְנִיָּה שְׁנֵי כְתוּבִין הַבָּאִין כְּאֶחָד, וּשְׁנֵי כְּתוּבִין הַבָּאִין כְּאֶחָד אֵין מְלַמְּדִין.
The Gemara objects: But if so, the reason for eating birds with even one sign is only that the Merciful One wrote: “Nesher.” One can infer, then, that if not for this, I would say: Derive from the peres and ozniyya that any bird with one sign is non-kosher. But that cannot be, since the peres and ozniyya are two verses that come as one, i.e., that teach the same matter, and as a rule, two verses that come as one do not teach a principle.
גְּמִירִי, דְּאִיכָּא בְּהַאי לֵיכָּא בְּהַאי, וּדְאִיכָּא בְּהַאי לֵיכָּא בְּהַאי.
The Gemara responds: It is learned as a tradition that the sign present in this, the peres, is absent in that, the ozniyya, and that which is present in that is absent in this. Accordingly, this is not a case of two verses that come as one, since each case would teach only that any other bird with only its respective sign is non-kosher. Consequently, it would have been possible to derive from them that any bird with only one sign is non-kosher. The verse therefore states: “Nesher,” to indicate otherwise.
מִכְּדֵי עֶשְׂרִים וְאַרְבָּעָה עוֹפוֹת טְמֵאִים הָווּ, אִי אֶפְשָׁר דְּחַד דְּאִיכָּא בְּהָנָךְ לֵיכָּא בְּהָנֵי, וְהָווּ לְהוּ שְׁנֵי כְּתוּבִים הַבָּאִים כְּאֶחָד.
The Gemara persists: Now, there are twenty-four non-kosher birds mentioned in the verses. It is impossible that the one sign present in these, the peres and ozniyya, respectively, is absent in all those other birds. Consequently, the mentioning of the peres, ozniyya, and the other birds constitutes two verses that come as one. If so, one could not have derived from the cases of the peres and ozniyya that a bird with one sign is not kosher, and the inclusion of the nesher is unnecessary.
גְּמִירִי: עֶשְׂרִים וְאַרְבָּעָה עוֹפוֹת טְמֵאִים הָווּ, וְאַרְבָּעָה סִימָנִין. תְּלָתָא הָדְרִי בְּכוּלְּהוּ, עֶשְׂרִים מֵהֶם שְׁלֹשָׁה שְׁלֹשָׁה, וּתְרֵי בְּעוֹרֵב, חַד בְּפֶרֶס וְחַד בְּעׇזְנִיָּה, דְּאִיתֵיהּ בְּהָא לֵיתֵיהּ בְּהָא. מַהוּ דְּתֵימָא לֵילַיף מִינֵּיהּ – כְּתַב רַחֲמָנָא ״נֶשֶׁר״, נֶשֶׁר דְּלֵית לֵיהּ כְּלָל הוּא דְּלָא תֵּיכוֹל, הָא אִיכָּא דְּאִית לֵיהּ חַד – אֱכוֹל.
The Gemara responds: It is learned as a tradition that there are twenty-four non-kosher birds, and four signs of a kosher bird. The same three signs can be found in all of them, with the exception of either the peres or the ozniyya. Twenty of them have all three signs, and two of those signs can be found in a crow. One sign is found in a peres and one in an ozniyya, and the sign present in this is absent in that, i.e., one of them has the fourth sign, which is absent from the other twenty-three non-kosher birds. Lest you say: Derive from it that any other bird with only that sign is non-kosher, the Merciful One wrote about the nesher to indicate: It is a nesher, which has none of the signs of a kosher bird, that you shall not eat. But if there is any bird that has even one of the signs, you may eat it.
אֶלָּא, תּוֹרִין דִּכְתַב רַחֲמָנָא לְמָה לִי? אָמַר רַב עוּקְבָא בַּר חָמָא: לְקׇרְבָּן. אָמַר רַב נַחְמָן:
The Gemara asks: But if one learns from nesher that a bird with even one sign is kosher, why do I need the doves that the Merciful One wrote are kosher, which have all four? Rav Ukva bar Ḥama said: The dove was not mentioned to teach that it is kosher, but rather to teach that it is the only bird fit to be sacrificed as an offering. Rav Naḥman says:
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