Puffs legs...

When I brought her home three weeks ago Puff had yellow/orange legs.  Over the past week they have been changing to a bluish color.  I worried that something was wrong, after all blue legs can't be good, right?  But found out that this is normal for the possible breed she is.

not a circulation problem

sweet Puff pic

She still sleeps in the house and I'm getting worried just thinking of when I have to put her in the big pen.  The RIRs are much older and some have been very aggressive.  Sigh.  I'm thinking of building a separate coop for her and Ace.