Would it be ok to have 2 girl canarys in a 15" x 15" x 18" cage, or should I get just one girl? (I am thinking 2 cuz they probably need "play pals" and I don't want babies) Would they make a lot of noise? How messy are they with their food? How many color varieties are there? And where can I get Canarys??? What do they eat; nut and berries, right? Please reply!!!!! I really want some!!!! Thanks!!!