Zevachim 67: Eliezer and Yehoshua; Oaths and Birds After Giving Birth

Some brief notes on today's daf:
We begin today's daf with the end of the Mishna which began in daf 66(b)

• Rabbi Eliezer argued that one is only liable for misuse if one slaughtered for the sake  of an offering of lesser value
• Rabbi Yehoshua countered that one changed the designation to an offering of lesser sanctity with no intention of misuse

The Gemara describes the argument between Rabbi Eliezer and Rabbi Yehoshua in greater detail.  One of the points regards the offering brought by a woman after giving birth.  We learn that if a woman swears an oath that she will have a boy and she does give birth to a boy, she brings two bird offerings. The Gemara explains how the priest takes and sacrifices her birds without asking questions about ther intentions.