Here this might help you with whites to sex them with color. Males are always with lighter coloring even when the have grey on them it is all over but always light yellow. The females have a dark grey cap and saddle on the back. Now this is only for whites. Because when you have saddlebacks they both male and female have grey caps and saddles so it is harder to tell them when you have color in the background.
Now we have to remember not every gosling hatched will make it to adult hood. There can be birth defects we can not see. Usually smaller goslings tend to be ones we seem to lose. My gosling was not small it was a buff and 4 weeks of age when I found it dead on it's back. Now I do not know if this baby died from being on it's back and not being able to right itself while I was at dialysis. It was a fat little healthy baby eating and drinking like a little piggy. I do know it kept trying to jump out of the container. So it could have died that way or had a heart attack...
Some even make it to adults and still just drop dead on you. This is with all breeds of geese not just Sebastopol's....
Also stress on a female from laying eggs and not getting enough calcium replaced while she is laying eggs she can die from stress and lack of calcium. Making eggs takes the calcium from their bones and needs to be replaced or your female drops dead...
Now we have to remember not every gosling hatched will make it to adult hood. There can be birth defects we can not see. Usually smaller goslings tend to be ones we seem to lose. My gosling was not small it was a buff and 4 weeks of age when I found it dead on it's back. Now I do not know if this baby died from being on it's back and not being able to right itself while I was at dialysis. It was a fat little healthy baby eating and drinking like a little piggy. I do know it kept trying to jump out of the container. So it could have died that way or had a heart attack...
Some even make it to adults and still just drop dead on you. This is with all breeds of geese not just Sebastopol's....
Also stress on a female from laying eggs and not getting enough calcium replaced while she is laying eggs she can die from stress and lack of calcium. Making eggs takes the calcium from their bones and needs to be replaced or your female drops dead...