Have three week old chicks almost completely feathered out. They are getting big and rambunctious and I know they'd be happier with more space. They don't need their heater anymore and are doing well in my 60 degree basement, so I am considering putting them outside with the others. Daytime is in the 40's and nighttime is hitting the mid 20's here... I have learned enough from the boards to know I can partition the underneath of my coop so that the bigger birds cannot not get in and then provide a heat source. Question is... I've never done this before and am not sure how to go about the actual transition once the space is ready, and how long I should expect to intensely supervise the process. Help please?