Rob Drummond / Silver Gull (Larus novaehollandiae) flying, Victoria, Australia

Gary Bell/ Oceanwide / Silver Gull (Larus novaehollandiae), Heron Island, Great Barrier Reef, Queensland, Australia

Ernie Janes / Silver gull (Chroicocephalus novaehollandiae) on beach Victoria, Tasmania, Australia.

Emanuele Biggi / Black-backed jackal (Canis mesomelas), adult individual eating a dead kelp gull. Cape Cross cape ful seal colony, Namibia

Oriol Alamany / Dingo (Canis lupus dingo) with Silver Gull (Larus navaehollandiae) on beach, Fraser Island UNESCO World Heritage Site. Queensland, Australia, November.

Mark Carwardine / Red-billed gull (Larus novaehollandiae) in flight overhead, Stewart Island, New Zealand, June

Juergen Freund / Silver gull (Chroicocephalus novaehollandiae) flock on beach, Queensland, Australia.

Rob Drummond / Silver Gull (Larus novaehollandiae), Victoria, Australia

Tui De Roy / Silver / red-billed gull (Chroicocephalus novaehollandiae) nesting, Phillip Island Nature Park, Victoria, Australia, December.

Tui De Roy / Silver / red-billed gull (Chroicocephalus novaehollandiae) calling, Phillip Island Nature Park, Victoria, Australia, December.

Greg Oakley / Silver Gull (Larus novaehollandiae) with fish prey, Victoria, Australia

Simon Bennett / Silver Gull (Larus novaehollandiae), New South Wales, Australia