"....During Sukkot, every Jewish family by Torah is required to build a 3 sided booth for the festival to (if weather permits) live in or at least have a meal, a study or a time of prayer in there. It commemorates the 40 years that Israel wandered and camped in the desert. If one's life or health was at risk they were not required to stay in a sukkah and seeing as Miriam (Mary) being pregnant with Yasha (Jesus) Yosef (Joseph) sought out a hotel, and inn but to no avail.

Luke 2:6 And so it was, that, while they were there, the days were accomplished that she should be delivered. 7 And she brought forth her firstborn son, and wrapped him in swaddling clothes, and laid him in a manger; because there was no room for them in the inn.

And as fate would have it, they ended up in a sukkah of sorts anyway!...."

http://www.sarahstent.info/images/Merry_Sukko ...

NOT A STABLE FOR UNCLEAN ANIMALS!