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Emperor penguin not out of the woods yet

Saturday 25 Jun 2011 10:15a.m.

Emperor penguin not out of the woods yet

By Nick Perry and Sue Manning

This is one homesick penguin, stranded on a New Zealand beach 2,000 miles from Antarctica and eating sand it mistook for snow.

Wildlife officials stepped in Friday and moved the ailing young bird to a zoo where a four hour surgery took place to clear its throat of sticks and sand.

The emperor penguin appeared healthy when it was first spotted Monday on picturesque Peka Peka Beach – New Zealand’s first sighting of the bird in the wild in 44 years.

But it grew more lethargic as the week passed, falling weakly into the wet sand at times, and officials feared it would die if they didn't intervene.

"It's not going to survive here on the beach if we left it here," said Peter Simpson, a program manager for the Department of Conservation. "There's too much public pressure. It's just out in the open".

The penguin had been eating small sticks of driftwood and sand, which experts said it likely thought was the snow it normally consumes for hydration in Antarctica. Temperatures were far higher than the subfreezing temperatures it's used to.

Wellington Zoo staff said the bird was dehydrated and suffering heat exhaustion.

"Today it was not moving very much and, perhaps as a consequence of eating the sand ... it certainly has lost condition," said John Cockram, a penguin expert from Massey University.

Zoo vet science manager Lisa Argilla said the bird's throat was flushed with water to try to clear the debris, but it still seemed blocked, so a further surgery was scheduled for Saturday at 11am.

"I'm hoping it’s just a piece of driftwood that we can reach down and pull out," Argilla told the Dominion Post.

For the 40-mile journey to the zoo, the 32-inch penguin was lifted into a tub of ice and then onto the back of a truck. The weakened bird did not need to be sedated for the ride.

The tallest and largest species of penguin, the emperors' amazing journey to breeding grounds deep in the Antarctic was chronicled in the 2005 documentary March of the Penguins, which highlighted their ability to survive - and breed - despite the region's brutal winter.

Estimated to be about 10 months old, the penguin probably was born during the last Antarctic winter and may have been searching for squid and krill when it got lost. Experts haven't yet determined whether it is male or female.

"He's a young bird that's out swimming and foraging and doing what he's supposed to do. He just made a wrong turn someplace," said Lauren DuBois, assistant curator of birds at SeaWorld in San Diego, which has the only colony of emperor penguins in North America. Thirty birds live there in a 25-degree habitat that simulates Antarctica, with 4,000 to 5,000 pounds of snow blown in every day.

About six months after hatching, DuBois said, a young emperor will head out to sea and spend up to four years in the water without coming back to the rookery.

"The birds will travel quite far," she said, noting it is not unusual for them to be in the water near New Zealand. "What is unusual for this penguin is that he's come ashore and he's causing quite a stir," she said.

"Anything above 32 degrees and they will start getting stressed," she said.

The bird's future is uncertain. New Zealand has no zoo equipped for the long-term care of emperor penguins, which can grow up to 122cm high and weigh up to 90 pounds 34kg. DuBois said SeaWorld would be ready to step in and help if asked.

Ideally, the penguin will heal enough to eventually be released into the wild. But returning it to Antarctica isn't feasible, at least for now. There's no transportation to the continent in the harsh winter.

There's also concern about infection. The penguin may have caught a disease by swimming through warmer climes, and wildlife officials would not want to be responsible for introducing illness into the insulated Antarctic penguin colony, Simpson said.

Often, sick birds require rehabilitation for a month or two before being released, Wellington Zoo spokeswoman Kate Baker said, adding that some creatures with severe injuries remain in captivity.

The rare venture north captured the public imagination, with school groups, sightseers and news crews coming to the beach to see the penguin and photograph it from a distance.

Christine Wilton, who discovered the penguin Monday while walking her dog, was back at the beach Friday to say goodbye.

"I'm so pleased it's going to be looked after," she said. "He needed to get off the beach. He did stand up this morning, but you could tell that he wasn't happy".

AP

 
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