Where did you get your geese from? We have the same breed and they are just about the same age. I love having geese . . . they have such personalities.
I'm pretty sure that American Buff geese mainly stay on the ground. They are too heavy to fly even as young goslings. I watch mine flap their developing wings and they can hop off the ground but not much more. Sometimes they will get excited about the joy of living and take off flapping, but they only get a foot off the ground, and don't fly far. We aren't planning on clipping wings, and I never had to clip the geese we had when I was growing up . . . but I've clipped a lot of chicken wings! : ) Some hens are just too smart for their own good . . .
Rachel in WA State