This beautiful little sea-bird is one of our endangered species.  From what was once an abundant population around the coasts of both North and South Islands, they are now confined to the lower half of the Northland Peninsula.  One of the reasons why I hate vehicles being allowed to rip up our beaches is the damage they do in the breeding season to the eggs and young of our beach-dwelling birds.

Fairy tern1

Fairy terns

(enlarge for detail)