Thousands of snow geese touch down at a Pennsylvania reservoir each spring, turning sunrise into a loud, swirling liftoff ...

An unusually large flock of young kea visiting Aoraki Mount Cook National Park has become part of a trial to track the movements of this far-flying parrot.

It hatches its eggs at -25C; survives cold, dark months by sticking excess food collected during summer on the underside of tree branches using its own saliva and doesn’t even fly south for winter.