Study Guide Yoma 41 Pictures Rav Chisda brings a law regarding the designation of pairs of bird offerings (one as a burnt offering and one as a sin offering) - when is the designation valid and cannot be changed? The gemara brings a braita quoted on the previous page as a question against Rav Chisda. Another braita is also brought to question his opinion but all of these questions are resolved. The mishna continues with the Yom Kippur service in the Temple. The kohen ties a red strip of wool around the goat that will be sent to Azazel and moves its position. Then something is done to the other goat but it is unclear if it means that a red strip of wool is tied around its neck or if it relates to its position in the Temple? The gemara concludes that it has a strip tied around its neck. Where else are red strips of wool used and what is the difference between the strip in the different situations?