User blog comment:Sky fire is firing at you from above/Space giraffes are hard to examine in a building/@comment-4583259-20121106030834

It depends on where you put the windows. Giraffes need to be blocked at their feet and at about the height of the "shoulders". Also, because they can jump up one block, you really need two blocks high to block them.

This wall works because it blocks the shoulders:



And this wall works because it blocks the feet: