I was wondering about something, hope one of you long-time watchers may know the answer. I've been watching the chicks preen since banding and none of them seems to be "picking at" his/her bands. To me, this is odd because most critters seem ultra-sensitive to anything foreign on them (for eg., a ribbon around a kitten's neck -- certainly not the same, but the best example I can think of right now). Are the chicks' legs less sensitive, or what?