Why put the chicks out after a few days? They will need supplemental heat, even in FL. Also, a weasel or snake can easily climb in through the wire that's above the hardware cloth and into the dog kennels. I'd keep them inside at least until they're feathered and odd of heat and a bit bigger.
Personally, I would keep the chicks inside for a few weeks at least or until feathered out at 5-6 weeks. They can slip through the bars of the dog crates for one, and it's hard to heat adequately a big open, drafty space like that for young chicks who need a draft-free 90 degree environment...