Gender of gosling

[Wolfieskyes]

This little fluff ball hatched this morning it's a Sebastopol gosling but it could also be a saddleback Sebastian pool I'm just trying to figure out the gender I have three other Sebastopol goslings that are guaranteed going to be white so I was able to tell the gender of them I have one boy and two girls they're going on about two months old now they were easy to figure out the gender but with this one it's mainly a faint yellow with barely any gray markings at all there's a little bit on his wings any help would be appreciated thanks

 

[Goosebaby]

The only sure way is to vent sex them. Here’s a guide of how to do it.