Animals have 'instinctual' behaviors we haven't completely quantified yet, but are seen in aviatory and migratory species.
Some scientists believe the migratory animals sense of magnetic poles is so strong it actually appears as a dot in their field of vision.
Also other animals have senses, which we understand, but dont feel. For example porpoises and bats echolocation would truly be a sixth sense if we could experience it first hand. We get how it works, simple actually, but they live it. Some have imagined it combines with their other sense like sight, to make us all look like skeletons. Which to them, is normal and not scary.
My take, geese are dumb. We all know that. But there is probably behavioural and even sensory info they are getting that you don't get when you bail into their flock.
