My wife and I are brand new to raising chickens. We have had our first flock for less than 3 weeks and they are about 18 days old. When we first got them they were a little skittish but now they seem to freak out every time we make the slightest move around them. Should we be handling them more? Is there a way to correct this while they are still young? Even if we just come between them and their heat lamp and they see our shadow they start running around. When go to pick them up they completely lose it. They run all over the place knocking things over, squawking, trying to fly, and tossing little hairs everywhere. Any input would be greatly appreciated. We have no experience here so we're not sure if this is abnormal.