I have two 4 week old chicks in with my mostly 7 week old flock. The month-old chicks have feathers on their wings, tail feathers, chest feathers and some feathers down the middle of their backs. Under their wings and heads and necks is still fuzzy. The 7 weekers are pretty much fully feathered, some fuzz left on their heads and necks. The 10 day forecast calls for 70s and 80s fahrenheit during the day and mid 50s at night. I'm eager to get them into the coop so I can interact with them more. The way I have the brooder set up it is difficult for me to get them in and out. What would you do?