I've been going back and forth as to whether or not to put my chicks in the coop this weekend and after all the reading I've done on here, there seem to be a lot of "old timers" who have been dealing with chickens for decades and they said to get them out there! LOL My chicks will all be 4 weeks old this weekend so I plan to move them. I stopped using a heat lamp weeks ago and it's amazing how fast these chicks are growing. They are all almost fully feathered and I've been told they will be just fine. And I'm in Upstate NY!