Kittens at 11 days old. The orange one, "Sunny" weighs 5 ounces and is most likely a male. The calico kitten weighs 4 ounces and is most likely a female. She is sick with an upper respiratory infection. They're both on amoxicilan now and are doing better - but the little calico wouldn't eat much for a few days and we were worried she wouldn't make it. They are so close to opening their eyes, we think it will happen before the weekend.