I have been following that family for a year. I have a photo of mom nesting on May 12, 2014. She had two goslings at the beginning of last June. One parent died the week of February 14, 2015. I know they are only 10 months old but one looks like it could lay eggs at anytime.The belly is quite low and its behavior is somehow different: staying behind and pecking at the other sibling. They have returned to their birthplace.