Great guesses guys, you stepped it up a notch.
The correct answer was white-fronted terns.
"This image was part of series capturing the lifecycle of white-fronted terns in the Kaipara Harbour. The live in two colonies at opposite ends of an island in tidal flats. As a consequence I spent a lot of time crawling across beaches wearing army camouflage with just a camera, spare battery, binoculars and a water flask." - Eugene Polkan
Eugene Polkan earned a spot as a runner up in the Wildlife category of New Zealand Geographic Photographer of the Year 2011: http://bit.ly/182JClk
Guess the animal - advanced level!
For all those clever clogs out there... What am I?
Early on the afternoon of July 31, 2012, Paeroa jeweller Maggie de Grauw was flying home from a holiday in Samoa when she spotted a vast brownish-grey slick on the surface of the ocean beneath the aircraft.