Curious about the genetics


7 Years
Dec 17, 2012
São Paulo State, Brazil.
Hi, I have a trio of auto-sexing pilgrim/cottonpatch-type geese, which hatch out goslings in accord, and I also have 3 sisters of unknown breed, one is white, 2 look a bit like saddle-back cottons, except they all have orange/pink bills.
Now, the gander mated with the saddle-backs and 2 goslings have resulted which look just like female pilgrim/cotton-type goslings, but the yellow area is a little brighter. (2 more died before hatch, but they looked the same)
I expected a mix of saddle-back colouring, I´m surprised to see the goslings look so much like the auto-sexing. Does anyone who understands bit about this think that the saddle-back type females could also be from auto-sexing stock? I saw their parents in a mix of geese, I don´t remember the gander being white, I seem to remember all the birds were saddle-back/spot types,so then why would I get auto-sexing-looking goslings from them? Though the gander I have here is auto-sexing, wouldn´t that be lost if the geese aren´t? Anybody understand this?

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