I have been thinking. Couple of years ago we killed a goose that had a gps unit. It had flown south every year, except the one year it didn't have a successful nest. It stayed north in it's nesting area. I don't know if this is typical or not. Could be it was other reasons it didn't migrate. However, this year with the heavy spring rains it disturbed losts of nests. Most of our resident geese had ruined clutches due to flooding. We haven't had a stellar year in terms of bird numbers of both ducks and geese. I'm wondering if this could be a result of nesting being disturbed from an overly wet spring on the east coast? Wondering if it's typical behavior for birds to not migrate or fewer migrate if they don't have the need to imprint areas to juveniles? I would think birds would migrate as they have the need to. Needing open water or open food sources. I'm going to try to research this but was wondering if anyone might have any knowledge on it.