They used the wooden bricks to build lots of joined up enclosures for the wild animals to live in! Some of the boys decided that the tigers needed a "proper cage so they can't escape and eat us!!!!" So they spent a long time adding more bricks to the sides of their "cage" and carefully balancing them over the top to make a roof! All of the tigers were hidden inside out of sight! "This is a really good cage we made! Now they definitely can't eat us!" they said!