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Updated: September 13, 2011 12:09 IST

Wayward penguin Happy Feet missing in action

AP
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In this August 29, 2011 photo, the wayward emperor penguin known as Happy Feet checks out his new enclosure aboard the research vessel Tangaroa at Burnham Wharf in Wellington, New Zealand. Happy Feet is missing in the Southern Ocean.
AP In this August 29, 2011 photo, the wayward emperor penguin known as Happy Feet checks out his new enclosure aboard the research vessel Tangaroa at Burnham Wharf in Wellington, New Zealand. Happy Feet is missing in the Southern Ocean.

The wayward penguin known as “Happy Feet” has gone missing in the ocean south of New Zealand. There’s a slight chance scientists tracking the bird may hear from him again — if he’s still alive — but it could take years.

The emperor penguin’s satellite transmitter went silent on Friday, just five days after experts released the aquatic bird into the Southern Ocean about a quarter of the way down to Antarctica.

Experts tell The Associated Press the most likely scenario is that the transmitter fell off. The small unit was attached to the bird’s feathers with super glue and was designed to fall off early next year.

Other possibilities are that Happy Feet was eaten by an orca or a leopard seal; that he died of natural causes; or that the transmitter malfunctioned.

Another device, a small chip implanted under the bird’s skin, could one day send a signal if it comes close enough to a monitoring site.

Happy Feet became an international celebrity when he was discovered in June on a New Zealand beach 3,200 km from his Antarctic home. The bird became sick from eating sand which he likely mistook for snow, but was nursed back to health over two months at the Wellington Zoo. Veterinarians repeatedly flushed his stomach to remove sand and fattened him up on a diet of fish.

After he was released from the deck of a research vessel, Happy Feet’s satellite tracker showed that he swam in a meandering route, ending up about 120 km southeast of where he began when the last transmission was received Friday morning. Experts say his looping pattern was typical for a penguin chasing fish.

Kevin Lay, a consultant at the company Sirtrack which attached the tracking device, said staff have gone over diagnostics from the tracker and it appears it was functioning well until the last transmission.

Mr. Lay said the tracker needs to be above the water’s surface to transmit. Because penguins surface regularly to breathe, that hadn’t proved a problem until Friday.

“We think the most likely scenario is tag detachment,” Mr. Lay said. “The intention was always that the transmitter would fall off.”

That’s the scenario favoured by Peter Simpson, a programme manager at New Zealand’s department of conservation.

“Who knows? He’s probably swimming along quite happily without a transmitter on his back,” Mr. Simpson said.

“I’m still confident we did the right thing by releasing him back into the wild,” Mr. Simpson added. “He’s a marine bird and he’s designed to swim and he’s designed to live in the ocean.”

Scientists say there’s an outside possibility they may again hear Happy Feet because of a small transponder chip implanted under his skin, similar to those used to identify household cats and dogs. The chip could be activated if the penguin turns up near certain monitored emperor colonies in Antarctica.

Because Happy Feet is believed to be about three years old, it could be a year or two before he would arrive in an Antarctic colony to breed — if he is still alive.

New Zealand penguin expert Colin Miskelly said it’s time to face facts.

“It’s unlikely that we will ever know what caused the transmission to cease,” Mr. Miskelly wrote on his blog. “But it is time to harden up to the reality that the penguin has returned to the anonymity from which he emerged.”

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