I have 5 18day old chicks. 2ee, 1 welsummer and 2 cochin's. The cochins are slightly smaller but still seem to be mostly baby fluff. They also seem to be the shy ones, Is this the norm? The rest are super curious and out going. Should we spend more time with them? We started taking them outside this week to enjoy the grass but those 2 seem afraid . The welsummer and ee's climb on the nearest person and start diving off but the cochins stand still and look petrified.