Yes, conformity issues came to my mind, too, when I looked at it. Birds in a flock often merge so much that you're not sure if they are still individuals at all...
By the way, did you know that Graylag Geese can show male homosexuality, too? Ganders pair with each other for life just like the heterosexual animals. In fact, gander pairs seem to be even more stable than gander/goose pairings and are more intense in their displays.
Similar thing with Canada Geese and Snowgeese, but they don't pair for life (but for many years) neither with geese nor with ganders. And I don't know about intensity there. Doesn't matter, anyway, the interesting thing is that there might be at least two gay ganders on this card.
By the way, they are even more vigilant and often at the margin of the flocks hatchery and so they might be quite beneficial for the flock as watchers.
And yes, they have sex, too

Won't get any more graphic of course