Our cats have had a litter of kittens. Both Mum and Dad are super friendly, but one out of the four of them is quite timid ...he squeals and squirms when picked up and seems terrified. He also flinches if anyone puts their hands out and reaches out to him. All the other kittens are very friendly and happy to be cuddled. They have all been handled every day from the age of 1 week. I am aware of the crucial socialisation period between 2 and 7 weeks, and they are now just over 6 weeks old. Does anyone have an ideas about why he might be like this and how to help him? Any advice is good!