I used a dog crate as a brooder. I slid a dowel through the bars on the lowest cross bar, and they hopped right up. I had it on a higher one, but it was too high. So start low and raise it as they get bigger. Make sure whatever you use doesn't wiggle; I had to duct tape the dowel to be more secure for the last chick to feel comfortable. It jiggled and she hopped down. She tried again the next day, it didn't wiggle, and she stayed on.