[If] the pesach-offering was confused with [other] offerings, they must all be left to pasture until they develop blemishes, and are sold. Then he should bring this type of offering equivalent in value to the best of them, and he should bring the other type of offering equivalent in value to the best of them, and he must cover the added cost from his own purse.  [If] it was confused with firstborn-offerings —- R' Shimon says: If the group is composed of Kohanim, they may eat (the offerings).