Birk Sex: Male 9 weeks, weight: 1390 grams 7 weeks, weight: 1090 grams 6 weeks 5 weeks, weight: 722 grams 4 weeks, weight: 570 grams 3 weeks, weight: 470 grams 2 weeks, weight: 362 grams 1 week, weight: 209 grams 2 days g