Comentario citado sobre Levítico 1:17

How was the olah of a bird sacrificed?
He [the priest] ascended the ramp, and turned to the surrounding walkway, and made his way to the southeast horn.
There he pinched its head at the back of the neck, and severed it, and drained out its blood on the wall of the altar.
He took the head, turned the part where it was nipped to the altar, saturated it with salt, and threw it on to the fires [of the altar].
Then he came to the body, and removed the crop, the feathers, and the entrails that came out of it, and threw them on to the burning place. He tore [the body], but did not sever it in half, but if he did sever it, it is still valid. Then he saturated it [the body] with salt, and threw it on to the fires of the altar.
This mishnah provides instructions as to how the bird olah was sacrificed. Some of this mishnah does not need explanation, so I have commented only upon the sections that I felt require it.
Section three: After having slaughtered the bird by pinching its head off at the back of the neck, the priest severs the head off of the body (see Leviticus 1:15-17).
Section four: The first thing he takes care of is the head. He drains its blood by turning the point at which it was pinched toward the altar. Then he salts it very well until it is saturated (see Leviticus 2:13). After it has been salted, he can throw the head onto the altar so it can be burned.
Section five: Now he must take care of the body. He removes the parts that are not to be offered on the altar (Leviticus 1:16), the crop, the feathers and the entrails and then he throws them on the “Bet Hamoked”, the burning place where parts of animals that are not burned on the altar are burned. This was on the southern side of the altar.
He then tears the body at its wings, but he tries not to sever it in half (Leviticus 1:17). Finally, he salts the body and burns it on the altar.

In order to comprehend this we have to quote a statement by our sages in Shemot Rabbah 30,3 that the letter ו indicates an addition to something that was recorded previously whereas the absence of such a letter where one could have expected it suggests that what is introduced at that point has no connection with what had been reported previously. Having learned this, we can proceed to evaluate the respective presence or absence of the letter ו in different parts of this paragraph. The paragraph begins by listing contributions for the construction of the Tabernacle, listing thirteen different materials and joining each one to the other with the conjunctive letter ו to show that each of these materials was of equal importance in the construction of the Tabernacle and was equally indispensable. All of these materials could be subsumed under the heading תרומת השם. The Torah considered someone who had contributed copper as on the same level as someone who had contributed gold, for instance. According to Menachot 110 the Torah describes the person who offered a bird as a total offering as having offered a ריח ניחוח, no less so than a person who offered a four-legged mammal as an עולה, a total offering. The evaluation is based on the principle אחד המרבה ואחד ההמעיט, that the quantity of a contribution does not determine how G'd evaluates it but the intent does. As long as the intent is to please Heaven that is all that matters. In this connection, you may wish to read what I have written on Leviticus 1,17.

so ist es untauglich. Diese Tradition wird mit dem überflüssigen Zusatz (Lev. 1, 17) עולה הוא begründet, das dahin ausgelegt wird: Wenn auch das gesamte Blut ausgedrückt werden soll (s. Note 45) und darum die Vorschrift lautet, dass auch der von dem Rumpf abgetrennte Kopf an dem Altar ausgedrückt werden soll, ein Ganzopfer ist es und es bleibt tauglich, auch wenn diese Vorschrift nicht beobachtet worden, sondern nur das Blut aus dem Rumpfe ausgedrückt worden ist, weil die grosse Masse des Blutes sich doch im Rumpfe befindet Das ausschliessende הוא dagegen: ein Ganzopfer ist nur es, und es ist nur als solches tauglich, will den entgegengesetzten Fall ausschliessen, wenn man nur den Kopf ausgedrückt hat, dagegen die Hauptmasse des Blutes aus dem Rumpf nicht ausgedrückt hat (Talmud).

אש … ‎ונתנו AND [THE SONS OF AARON …] SHALL PUT FIRE [ON THE ALTAR] — Although the fire descended from heaven, it was nevertheless a religious duty to bring also some fire of profane origin (Sifra, Vayikra Dibbura d'Nedavah, Chapter 5 10; Yoma 21b; cf. Rashi on Leviticus 10:2 and Note thereon).

צפור כל כנף [EVERY] BIRD OF EVERY KIND — The word צפור is in the construct state, viz.. birds of every kind of wing, thus including locusts (Chullin 139b). The word כנף means “wingfeather”, as (Leviticus 1:17) “He shall rend it by the wings thereof”, for even its feathers were offered as a sacrifice. Also here, the meaning is, birds with any kind of semblance of wing.