First flock- five 8-week olds: 3 regular, 2 silkies. They’re outside during the day in temps 55-70. Inside at night, temps 68+. Getting stinky and loud (we have no garage). When can they be out overnight? Night temps in the 40s. Regulars look fully feathered. Not sure about silkies. MPC said to wait 9 weeks. I’m planning to put them out earlier and earlier in the morning, but at some point they’ll just have to be out overnight... What is the collective wisdom here? Thank you so much!