So I have these 6 pullets that are 10 days old on Friday. Also on Friday I will be getting 15 guineas from Ideal. (they called and asked if they could send them earlier than requested.) Is is ok to just mesh them together on Friday. It would be much easier for me. What is wrong with this strategy? I want to keep them warm and inside for a few weeks and put them in the coop with heat lamp. Obviously I am a rookie with all of this.