My chicks are 3 weeks old and they are trying to fly out of the stock tank I have them in! Can I clip their wings now? They are sharing the garage with our cats... needless to say if they get out, they will probably not survive! I only take the cover off to feed and clean, but that is when they 'try their wings'... Also, how soon can I put them outside if I keep them in the coop with their heat lamp? We are still having some chilly nights - about 40-45... It's a small coop on legs - about 4' x 6' and about 4' tall. Thanks!