Hey good luck with the little ones! I haven't heard those breeds to be flightly, but I don't have any of them myself. We used a four foot high wire, but created a one foot bib at the base, and so now it's only three feet high. My hubby caught the salmon faverolle roo roosting on the top of the fence when he went out there yesterday...the little guy jumped back in to safety when he was spotted, but it looks like we've got some building up to do, earlier than we expected! Our guys are only about 7 weeks old.