According to ornithologists, a rare Philippines buttonquail feared to have gone extinct was recently documented alive by a cameraman inadvertently filming a local market, right before it was sold and headed for the cooking pot. Scientists had suspected the species—listed as "data deficient" on the 2008 International Union for Conservation of Nature's Red List Category—was extinct. 
Last month, native bird trappers snared and successfully caught the Luzon Buttonquail (Turnix worcesteri or Worcester's buttonquail) in Dalton Pass, a cold and wind-swept bird passageway in the Caraballo Mountains, in Nueva Vizcaya, located between Cordillera Central and Sierra Madre mountain ranges, in Northern Luzon. 
The rare species, previously known to birders only through drawings based on dead museum specimens collected several decades ago, was identified in a documentary filmed in the Philippines called Bye-Bye Birdie.
British birder and WBCP member Desmond Allen was watching a January 26 DVD-video of  a documentary, Bye-Bye Birdie, when he recognized the bird in a still image of the credits that lasted less than a second. Allen created a screenshot, which was photographed by their birder-companion, Arnel Telesforo, also a WBCP member,
in Nueva Vizcaya's poultry market, before it was cooked and eaten.
i-Witness: The GMA Documentaries, a Philippine documentary news and public affairs television show aired by GMA Network, had incorporated Telesforo's photographs and video footage of the live bird in the documentary, that was created by the TV crew led by Mr Howie Severino. The Philippine Network had not realized what they filmed until Allen had informed the crew of interesting discovery.
Mr Severino and the crew were at that time, in Dalton Pass to film "akik", the traditional practice of trapping wild birds with nets by first attracting them with bright lights on moonless nights. "I'm shocked. I don't know of any other photos of this. No bird watchers have ever given convincing reports that they have seen it at all... This is an exciting discovery," said Allen. 
The Luzon Buttonquail was only known through an illustration in the authoritative book by Robert S. Kennedy, et al, A Guide to the Birds of the Philippines. This birders "bible" includes a drawing based on the skins of dead specimens collected a century ago, whereas the otherwise comprehensive image bank of the Oriental Bird Club does not contain a single image of the Worcester's Buttonquail.
“With the photograph and the promise of more sightings in the wild, we can see the living bill, the eye color, the feathers, rather than just the mushed-up museum skin,” exclaimed Allen, who has been birdwatching for fifty years, fifteen in the Philippines, and has an extensive collection of bird calls on his ipod. He has also spotted the Oriental (or Manchurian) Bush Warbler, another rare bird which he has not seen in the Philippines. 
“We are ecstatic that this rarely seen species was photographed by accident. It may be the only photo of this poorly known bird. But I also feel sad that the locals do not value the biodiversity around them and that this bird was sold for only P10 and headed for the cooking pot,” Wild Bird Club of the Philippines (WBCP) president Mike Lu said. “Much more has to be done in creating conservation awareness and local consciousness about our unique threatened bird fauna. This should be an easy task for the local governments assisted by the DENR. What if this was the last of its species?” Lu added.
“This is a very important finding. Once you don’t see a bird species in a generation, you start to wonder if it’s extinct, and for this bird species we simply do not know its status at all," said Arne Jensen, a Danish ornithologist and biodiversity expert, and WBCP Records Committee head.
According to the WBCP, the Worcester’s buttonquail was first described based on specimens bought in Quinta Market in Quiapo, Manila in 1902, and was named after Dean Conant Worcester.
Since then just a few single specimens have been photographed and filmed from Nueva Vizcaya and Benguet, and lately, in 2007, from Mountain Province by the Field Museum of Natural History in Chicago, Illinois.
Dean Conant Worcester, D.Sc., F.R.G.S. was an American zoologist, public official, and authority on the Philippines, born at Thetford, Vermont, and educated at the University of Michigan (A.B., 1889).  
From 1899 to 1901 he was a member of 
the  United States Philippine Commission; thenceforth until 1913 he served as secretary of the interior for the Philippine Insular Government. In 1910, he founded the Philippine General Hospital, which has become the hospital for the poor and the sick.
In October, 2004, at the request of Mr Moises Butic, Lamut CENR Officer, Mr Jon Hornbuckle, of Grove Road, Sheffield, has conducted a short investigation into bird-trapping in Ifugao, Mountain Province, Banaue Mount Polis, Sagada and Dalton Pass, in Nueva Vizcaya.
"Prices ranged from 100 pesos for a Fruit-Dove to 300 pesos for a Metallic Pigeon. Other species that are caught from time to time include Flame-breasted Fruit-Dove and Luzon Bleeding-heart; on one occasion, around 50 of the latter were trapped! All other trapped birds are eaten," said Hornbuckle. "The main trapping season is November to February. Birds are caught at the lights using butterfly-catching type nets. Quails and Buttonquails were more often shot in the fields at this time, rather than caught, and occasionally included the rare Luzon (Worcester’s) Buttonquail, which is only known from dead specimens, and is a threatened bird species reported from Dalton Pass," he added.
In August, 1929, Richard C. McGregor and Leon L. Gardner of the Cooper Ornithological Society compiled a book entitled Philippine Bird Traps. The authors described the Luzon Buttonquail as "very rare," having only encountered it twice, once in August and once in September. 
"They are caught with a scoop net from the back of a carabao. Filipino hunters snared them, baiting with branches of artificial red peppers made of sealing wax," wrote McGregor and Leon L. Gardner. "The various ingenious and effectual devices used by Filipinos for bird-trapping include [the] 'Teepee Trap' which consists of a conical tepee, woven of split bamboo and rattan about 3 feet high and 3 feet across at the base, with a fairly narrow entrance. 'Spring Snares' were also used, where a slip noose fastened to a strongly bent bamboo or other elastic branch, which is released by a trigger, which is usually the perch of the trap," their book explained.
A passage from the bird-trap book, which explains why Filipinos had eaten these endangered bird species, goes as follows:
A global review of threatened species by the International Union for Conservation of Nature (IUCN) indicates drastic decline of animal and plant life. This includes a quarter of all mammals, one out of eight birds, one out of three amphibians and 70 percent of plants.
The report, Red List of Threatened Species, is published by IUCN every year. Additionally, a global assessment of the health of the world's species is released once in four years. The data is compiled by 1,700 experts from 130 countries. The key findings of the report were announced at the World Conservation Congress held in Barcelona, Spain. 
The survey includes 44,838 species of wild fauna and flora, out of which 16,928 species are threatened with extinction. Among the threatened, 3,246 are tagged critically endangered, the highest category of threat. Another 4,770 species are endangered and 8,912 vulnerable to extinction. 
Environmental scientists say they have concrete evidence that the planet is undergoing the "largest mass extinction in 65 million years". Leading environmental scientist Professor Norman Myers says the Earth is experiencing its "Sixth Extinction."
Scientists forecast that up to five million species will be lost this century. "We are well into the opening phase of a mass extinction of species. There are about 10 million species on earth. If we carry on as we are, we could lose half of all those 10 million species," Myers said.
Scientists are warning that by the end of this century, the planet could lose up to half its species, and that these extinctions will alter not only biological diversity but also the evolutionary processes itself. They state that human activities have brought our planet to the point of biotic crisis.
In 1993, Harvard biologist E.O. Wilson estimated that the planet is losing 30,000 species per year - around three species per hour. Some biologists have begun to feel that the biodiversity crisis dubbed the "Sixth Extinction" is even more severe, and more imminent, than Wilson had expected.
The Luzon Buttonquail (Turnix worcesteri) is a species of bird in the Turnicidae family. It is endemic to the island of Luzon in the Philippines, where it is known from just six localities thereof. Its natural habitat is subtropical or tropical high-altitude grassland, in the highlands of the Cordillera Central, although records are from 150-1,250 m, and the possibility that it frequents forested (non-grassland) habitats cannot be discounted.
The buttonquails or hemipodes are a small family of  birds which resemble, but are unrelated to, the true quails. They inhabit warm grasslands in Asia, Africa, and Australia. They are assumed to be intra-island migrants, and  breed somewhere in northern Luzon in April-June and that at least some birds disperse southwards in the period July-March. 
These Turnicidae are small, drab, running birds, which avoid flying. The female is the more brightly coloured of the sexes, and initiates courtship. Unusually, the buttonquails are polyandrous, with the females circulating among several males and expelling rival females from her territory. Both sexes cooperate in building a nest in the earth, but only the male incubates the eggs and tends the young.
Called "Pugo" (quail) by natives, these birds inhabit rice paddies and scrub lands near farm areas because of the abundance of seeds and insects that they feed on regularly. These birds are characterized by their black heads with white spots, a brown or fawn colored body and yellow legs on males and the females are brown with white and black spots. 
These birds are very secretive, choosing to make small path ways through the rice fields, which unfortunately leads to their deaths as well, they are hunted by children and young men by means of setting spring traps along their usual path ways.
Buttonquails are a notoriously cryptic and unobtrusive family of birds, and the species could conceivably occur in reasonable numbers somewhere. They are included in the 2008 IUCN Red List Category (as evaluated by BirdLife International IUCN Red List of Threatened Species). They are also considered as Vulnerable species by IUCN and BirdLife International, since these species is judged to have a ten percent chance of going extinct in the next one hundred years.

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Endangered Luzon Buttonquail photographed alive by Philippines documentary