Love your grey goosie!
I had a grey one hatch last year and again this year from supposedly Embden and Toulouse parents - I was too stupid to know better when I bought the parents as goslings with some grey featehers, but I've had some lovely offspring that look more convincing than the parents. They are possibly Toulouse but I also have a couple that look like Pilgrims IMO having seen some on telly once!
One thing I won't be doing next year is letting the parents keep their babies, bloody useless! One pair in particular have allowed their babies to be crushed, and I've lost the majority of the hatch, I kept telling them to be more careful and hoping the young ones were now big enough to be safe but no!
It's back to the incubator and the bath tub for next year!