If you use something like this ....
make sure to cover the bottom half with chicken wire. I just lost one chick to the neighbor dog. He got loose (because the owner is just stupid !!!!!!!) and I guess charged the crate. The chicks got so freaked out that somehow two where able to squeeze through the bars (I don't know how, they are 3 1/2 weeks old and quite big). I was able to catch one but couldn't get to the second one fast enough. Dog got her first
make sure to cover the bottom half with chicken wire. I just lost one chick to the neighbor dog. He got loose (because the owner is just stupid !!!!!!!) and I guess charged the crate. The chicks got so freaked out that somehow two where able to squeeze through the bars (I don't know how, they are 3 1/2 weeks old and quite big). I was able to catch one but couldn't get to the second one fast enough. Dog got her first