We have a flock we've been raising from chicks - 7 (all different breeds) chicks between 7 and 10 weeks old. They went out into the newly built coop/run this weekend and are doing great. Fast forward to this afternoon: my husband's friend has a flock of red sex links. Friend had added two ~15 week old RSLs to his flock without any integration what-so-ever (oi vey!) and the two newbies have been seriously picked on for the last three weeks. Friend offered the newbies to my husband, and he called to say he's bringing them home. SO - I've read a bit about flock integration, but I'm wondering if anyone has any tips on adding two 18 week old birds to an existing flock that is younger than them? I'm thinking the see-but-don't-touch method is going to be our best bet, especially because one of our existing flock is the tiniest little thing still (at 8 weeks old, s/he's still about the size of a softball, and slow-feathering to boot!) and I don't think s/he could defend itself against a bird more than twice its size/age. Anyone done this before? Any tips? Just for fun, here's a picture of Liz Taylor/Waffle, our tiny, slow feathering wonder.