Mishnayos Eduyos Perek 4 Mishnah 2

הכל מודים שהוא מותרת – for it known that the fetus completed its months.

ואפרוח שיצא – everyone admits/agrees that it is prohibited because of the moving creatures of the birds.

השוחט חיה ועוף (this part of the Mishnah is also taught in Tractate Betzah, Chapter 1, Mishnah 2) – who comes to slaughter beasts and fowl on Holy Days and they took counsel in the Jewish court how one might do this.

ב"ש אומרים – The Jewish court teaches him that he may slaughter [the animal] ab initio and dig with a mattock/pronged-tool stuck into the ground that he has while it is still daylight, that is to say, he should from the place where it is stuck and bring up dirt and cover it (i.e., the blood]. And we are speaking of that which is stuck in crushed/loose earth that is suitable for covering which is not lacking crushing/pounding.

דקר – a peg which we stick into the ground; the language of (Numbers 25:8): “[He followed the Israelite into the chamber] and stabbed both of them…”

שאפר כירה מוכן הוא – it does not refer to the matters of the Schools of Shammai and Hillel but rather it is an independent matter of its own and this is how it should be understood: the ashes of the stove may be regarded as set in readiness. And it is not taught that it was heated from the Eve of the Holy Day, but if it was heated on the Holy Day, it is prohibited as we cannot say that from the day before, our mind was upon it. And if it is appropriate to roast an egg in it, for still there are hot ashes/embers, it is permitted to cover it. Since one can turn it over to roast it an egg, we can take it also and cover it.