Family oriented geese: Greater White-fronted

Though I had found a flock of 14 Greater White-fronted Geese on Dec 11 2010 I did not refind them after my trip to Texas until yesterday, and then only 6 of them. I called them family oriented geese as Cornell Lab on their All About Birds website states, "White-front family bonds can last longer than in most geese, and some young stay with their parents through the next breeding season. Parent and sibling associations may continue throughout their lives." SeEtta