I don't know what happened. My daughter is raising geese. and I also got 3 to grow up with hers. Today they were just fine. They are about 5 weeks and we have really enjoyed them. Today as I said were just fine. she checked on them and went to check on them an hour later after it rained, and found one out in the pen dead. Not a mark on it. There were 2 other toulouse geese and 2 african geese, and 2 kahki ducks all growing up together. The others are fine, We don't know what happened. any ideas? we don't want this to happen to any of the other ones.