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22 May 2017

Gari the penguin crosses the ditch

NEW ZEALAND – On 16 May 2017 an endangered Fiordland crested penguin named Gari headed to her new home at Taronga Zoo in Sydney, Australia, after years of care and treatment at The Nest Te Kōhanga, Wellington Zoo’s Veterinary Hospital.

Gari as a juvenile penguin at The Nest Te Kōhanga
in March 2015. Credit: Wellington Zoo
Gari was just a juvenile bird when she was originally found in Hokitika with extensive wounds to her lower abdomen and to her left foot. Gari received care and initial treatment by the veterinarian team at West Coast Vets Hokitika, and then the West Coast Penguin Trust arranged for her to fly to Wellington to receive further treatment at The Nest Te Kōhanga in December 2014.

“When Gari first arrived at The Nest Te Kōhanga, we performed a general health check and multiple surgeries to repair her various wounds,” said Senior Veterinarian Baukje Lenting.

“We don’t know how Gari sustained her injuries but due to the severity of the wound around her lower abdomen, her vent has changed shape and location since healing. This means she would likely struggle to produce and lay fertile eggs in the wild.”

New Zealand penguins in crisis

NEW ZEALAND – The world’s threatened penguin species live in New Zealand and yet there is no co-ordinated government plan to protect them, New Zealand conservation organisation Forest & Bird has said.

Forest & Bird is joining a global Protect a Penguin campaign to help save penguins and is calling for a national recovery plan to protect New Zealand’s struggling penguin species.

The world’s penguins are in crisis with 10 of out of 18 species at risk of being wiped out. Five of these threatened species live and breed on New Zealand’s mainland and sub-Antarctic islands.

"We are urging the New Zealand government to establish a national Penguin Recovery Group, administered by the Department of Conservation. This group, similar to the very successful Kiwi Recovery Group, would facilitate a more coordinated and collaborative approach to the conservation of all our penguins," said Forest & Bird's CE Kevin Hague.

22 April 2017

Time-lapse cameras peek at penguins' winter behaviour

ANTARCTICA – Not even the most intrepid researcher wants to spend winter in Antarctica, so how can you learn what penguins are doing during those cold, dark months? Simple: Leave behind some cameras.

Time-lapse cameras recorded images of
gentoo penguins at their breeding sites in winter.
Photo credit: T Hart
Year-round studies across the full extent of a species' range are especially important in polar areas, where individuals within a single species may adopt a variety of different migration strategies to get by, and a new study from The Auk: Ornithological Advances uses this unique approach to get new insights into gentoo penguin behaviour.

Gentoo penguins are of interest to scientists because they're increasing at the southern end of their range in the Western Antarctic Peninsula, a region where other penguin species are declining.

Little is known about their behaviour during the non-breeding season, so Caitlin Black and Tom Hart of the University of Oxford and Andrea Raya Rey of Argentina's Consejo Nacional de Investigaciones Cientificas y Técnicas used time-lapse cameras to examine patterns in gentoo penguins' presence at breeding sites across their range during the off season.

17 April 2017

Penguin colony repeatedly decimated by volcanic eruptions

ANTARCTICA – One of the largest colonies of gentoo penguins in Antarctica was decimated by volcanic eruptions several times during the last 7,000 years according to a new study.

A gentoo penguin excreting guano
onto the snow near Potter Cove,
King George Island.
Photo credit: Steve Roberts
An international team of researchers, led by British Antarctic Survey (BAS), studied ancient penguin guano and found the colony came close to extinction several times due to ash fall from the nearby Deception Island volcano. Their results were published on 11 April in Nature Communications.

Ardley Island, near the Antarctic Peninsula, is currently home to a population of around 5,000 pairs of gentoo penguins. Using new chemical analyses of penguin guano extracted in sediment cores from a lake on the island, the researchers unraveled the history of the penguin colony.

18 March 2017

East Antarctica's Adelie penguin population more than double previous estimate

ANTARCTICA – Scientists have their best estimate yet of how many Adélie penguins live in East Antarctica, numbering almost six million, 3.6 million more than previously estimated.

The new research by a team of Australian, French and Japanese scientists used aerial and ground surveys, tagging and resighting data, and automated camera images over several breeding seasons.

The researchers focused on a 5000 kilometre stretch of coastline in East Antarctica, estimating 5.9 million birds and extrapolating that out to likely global estimate of 14–16 million birds.

17 March 2017

In times of plenty, penguin parents keep feeding their grown offspring

A fledged juvenile Galapagos penguin.
Photo credit: Dee Boersma/Galapagos National Park
GALAPAGOS ISLANDS – Humans are not alone in continuing to support offspring who have “left the nest”. It happens in Galapagos penguins, too.

In a paper published online in The Wilson Journal of Ornithology, a research team led by University of Washington biology professor Dee Boersma reported that fully grown Galapagos penguins who have fledged – or left the nest – continue to beg their parents for food. And sometimes, probably when the bounty of the sea is plentiful, parents oblige and feed their adult offspring.

“Through field seasons over the years when we were observing penguin behavior in the Galapagos Islands, we saw these isolated instances of adults feeding individuals who had obviously fledged and left the nest,” said Boersma.

“And now we’ve collected enough field observations to say that post-fledging parental care is a normal – though probably rare – part of Galapagos penguin behavior.”

12 March 2017

Penguin hospital saves five percent of yellow-eyed population

NEW ZEALAND – The penguin hospital at Otago Polytechnic’s School of Veterinary Nursing has had 24 yellow-eyed penguins through in the last six weeks.

With only 250 breeding pairs in the wild this year, that means that wildlife vet Lisa Argilla has saved five percent of the breeding population.

“Yellow-eyed penguins are one of the rarest penguins in the world, and are unique to New Zealand.  If we don’t look after them now, they will die out” Dr Argilla said.