i have 3, 5 weeks old chicks that i want to put outside, but it's been raining and 40 degrees every day. i know they have enough feathers to go outside, but i already have 4 hens out there. last time i transitioned i kept the chicks outside in a fenced off area for a few days, so the hens could get used to them, but it was warmer outside. i know they could probably be in the coop with a heat lamp, but i don't want to lock the hens out of the coop. it's 45 degrees outside right now and wet from yesterdays rain. think i can put them in the yard fenced off for a little while? what would you do?