Chinese goose gender question

[GardienneWings]

Good morning. I am new to Chinese geese and have a question. I have a definite pair, but I also have 4 that I raised from bought eggs last year. The 4 are various sizes so I figured male and female but I think I maybe wrong.....1 of the 4 hangs in the pasture with the pair and the male accepts this, however it is the largest of the yearlings so I figured male, but would the dominant male accept another male hanging around? The other 3 have started constantly "fighting" or better described as wrestling both at the pond and in the barn at night, and at times all 3 will be in a "knot" biting each other's wings etc. The one that hangs with the pair does not get into these battles. Does this behavior mean they are all males even though some are larger than others?
Thanks!
Val

 

[bock]

Hhhhhhhhhhhhhhmmmmmmmmmmmmmmm

 

[GardienneWings]

Caught the one that hangs with the pair breeding the female when her mate wasn't looking so that answered that question

I have decided I must have 4 males so keeping fingers crossed for all female goslings this year since the pair isn't related to 3 of the 4 males.