A 10-foot long remote controlled flying Santa makes a test flight over the ocean in Carlsbad, California, U.S., December 3, 2017. REUTERS/Mike Blake TPX IMAGES OF THE DAY 

Birds fly over the mouth of the Araguari River on the coast of Amapa state, near Amapa city, northern Brazil, March 31, 2017. REUTERS/Ricardo Moraes SEARCH "OIL AMAZON" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. 

Birds fly over the mouth of the Araguari River on the coast of Amapa state, near Amapa city, northern Brazil, March 31, 2017. REUTERS/Ricardo Moraes SEARCH "OIL AMAZON" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. 

The silhouette of a mock bird, used as a scarecrow, is seen in a field of sunflowers in Montbert, France, October 4, 2016. REUTERS/Stephane Mahe 

The silhouette of a mock bird, used as a scarecrow, is seen in a field of sunflowers in Montbert, France, October 4, 2016. REUTERS/Stephane Mahe 

A peacock bird design made of flowers is seen at the Chelsea Flower Show in London, Britain, May 23, 2016. REUTERS/Toby Melville 

Pope Francis (C) celebrates Mass in San Cristobal de las Casas, Mexico, February 15, 2016. REUTERS/Max Rossi

Pope Francis celebrates Mass in San Cristobal de las Casas, Mexico, February 15, 2016. REUTERS/Max Rossi

Pope Francis celebrates Mass in San Cristobal de las Casas, Mexico, February 15, 2016. REUTERS/Max Rossi

A New Zealand supporter, with an inflatable Kiwi on his shoulders, watches during the third day of the third cricket test match against Australia at the Adelaide Oval, in South Australia, November 29, 2015. REUTERS/David Gray 

A man takes pictures of the Sheraton Huzhou Hot Spring Resort, or "Moon Hotel", behind replicas of the rubber duck by Dutch conceptual artist Florentijn Hofman on Taihu Lake, in Huzhou, Jiangsu province November 6, 2013. The 27-storey luxury hotel, which was designed by Chinese architecture Ma Yansong, opened to the public in October 2013. The hotel is known in China by its nicknames such as "Doughnut Hotel" and "Horseshoe Hotel", local media reported. Picture taken November 6, 2013. REUTERS/Sean Yong (CHINA - Tags: SOCIETY TRAVEL) 

A 40-foot-high (12-metre-high) and 30-foot-wide (nine-metre-wide) inflatable rubber duck, created by Dutch artist Florentijn Hofman, is towed up the Allegheny River in Pittsburgh, Pennsylvania September 27, 2013. The event marks the North American debut of Hofman's Rubber Duck Project, which has taken place in other cities in Asia, Europe, Australia and South America. REUTERS/Jason Cohn (UNITED STATES - Tags: SOCIETY TPX IMAGES OF THE DAY) 

The "Rubber Duck" by Dutch conceptual artist Florentijn Hofman is displayed at Kaohsiung Harbor, southern Taiwan, September 19, 2013. The giant rubber duck, which is 18 m (60 ft) high and weighs 1,000 kg (2,200 pounds), made its first public appearance in Taiwan on Thursday. It will be displayed at Kaohsiung Harbor from September 19 to October 20. REUTERS/Pichi Chuang (TAIWAN - Tags: SOCIETY) 

A plastic bird is seen hanging on a tree in Shanghai September 4, 2013. REUTERS/Aly Song (CHINA - Tags: SOCIETY) 

People enjoy riding water bicycles in a park in Bucharest, as temperatures reached 37 degrees Celsius (98.6 degrees Fahrenheit) in southern Romania August 7, 2013. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A mock-up of a pigeon with a small camera is seen on display at the 'Top Secret' Spy Museum in Oberhausen, July 10, 2013. The museum presents various objects, devices and gadgets used for spying or related to espionage. REUTERS/Ina Fassbender (GERMANY - Tags: SOCIETY ENTERTAINMENT) 

A deflated Rubber Duck by Dutch conceptual artist Florentijn Hofman, is lifted up for repair by a crane on a ship in Hong Kong's Victoria Harbour May 15, 2013. The 16.5-meter-high inflatable sculpture, which made its first public appearance in the territory on May 2, will be shown at the Ocean Terminal for a month. The Rubber Duck was deflated after some of its parts broke. REUTERS/Tyrone Siu (CHINA - Tags: SOCIETY MARITIME) 

A deflated Rubber Duck by Dutch conceptual artist Florentijn Hofman floats on Hong Kong's Victoria Harbour, with the island skyline looming at the background, May 14, 2013. The 16.5-meter-high inflatable sculpture, which made its first public appearance in the territory on May 2, will be shown at the Ocean Terminal for a month. The Rubber Duck was deflated after some of its parts broke. REUTERS/Tyrone Siu (CHINA - Tags: SOCIETY TPX IMAGES OF THE DAY) 

Rubber Duck by Dutch conceptual artist Florentijn Hofman floats at Hong Kong's Victoria Harbour, with the island skyline looms at the background May 2, 2013. The 16.5-meter-high inflatable sculpture, which made its first public appearance in the territory on Thursday, will be shown at the Ocean Terminal for a month. REUTERS/Bobby Yip (CHINAENTERTAINMENT ENVIRONMENT - Tags: SOCIETY CITYSCAPE TPX IMAGES OF THE DAY) ENTERTAINMENT ENVIRONMENT) 

A flock of starlings fly over an agricultural field near the southern Israeli city of Netivot January 24, 2013. REUTERS/Amir Cohen 

Palestinian children stand to form Pablo Picasso's Dove of Peace as part of a project by British aerial artist John Quigley and the United Nations Relief Works Agency (UNRWA), at the foot of the Mount of Temptation in the West Bank city of Jericho November 25, 2011. It took some 1000 children from United Nations schools to create the project produced as part of the "Peace on Earth" project, a global musical prayer for peace which will be broadcast globally from Bethlehem's Manger Square on Christmas day, a U.N. press release said. REUTERS/Ammar Awad (WEST BANK - Tags: ENTERTAINMENT SOCIETY TPX IMAGES OF THE DAY) 

Rick Gavin prepares a robotic duck decoy during a hunt along the Pend Oreille River near Sandpoint, Idaho, November 5, 2011.

Faced with flagging license sales in some years, Idaho, Montana and Wyoming have renewed efforts to recruit new hunters. Picture taken November 5, 2011. REUTERS/Matt Mills McKnight
(UNITED STATES - Tags: SOCIETY) 

A pigeon walks past "gravestones" representing the victims missing and killed in the armed conflict in Colombia during a tribute at the Bolivar Square in Bogota October 10, 2011. REUTERS/John Vizcaino (COLOMBIA - Tags: CONFLICT) 

A woman walks past a sculpture by Colombian artist Fernando Botero at the Botero Museum in Bogota August 17, 2011. Colombia's capital city lures tourists with its mild year-round weather, booming nightlife and its museums about gold, emeralds and Botero. Once sleepy streets buzz with crowds at outdoor tables and modern art graces courtyard cafes. Wildlife from the tropics spills into the city, 8,612 feet (2,635-metres) high. The Bogota area harbors hundreds of bird species. Nearby valleys grow a dizzying array of fresh produce sent to local restaurants. Picture taken August 17, 2011. REUTERS/Fredy Builes (COLOMBIA - Tags: SOCIETY TRAVEL) 

Race fans Chuck Cummings (L) and Bill Flint place plastic pink flamingos in the salt near their viewing area during the third day of the 63rd annual Bonneville SpeedWeek race on the Bonneville Salt Flats outside Wendover, Utah, August 15, 2011. Hundreds of drag race cars will attempt to set land speed records during the course of the week. REUTERS/Jim Urquhart (UNITED STATES - Tags: SPORT MOTOR RACING SOCIETY IMAGES OF THE DAY) 

The 'SmartBird', an ultralight flight model of German manufactor FESTO flies during the opening ceremony of the "Hannover Messe" industrial trade fair in Hanover April 3, 2011. The world's leading fair for industrial technology, with about 6,500 exhibitors from 65 nations, runs till April 8 with France as this year's partner country. REUTERS/Morris Mac Matzen (GERMANY - Tags: POLITICS SCI TECH BUSINESS) 

Belarussian ornithologist Vladimir Ivanovski stands on a tree as he builds an artificial nest for birds of prey from an old bucket, in the snow-covered Elnya marsh, one of the biggest in Central Europe, near the village of Budy, some 230 km (143 miles) north of Minsk, March 29, 2011. Ivanovski has built hundreds artificial nests from natural materials such as tree branches, and from used old buckets too. REUTERS/Vasily Fedosenko (BELARUS - Tags: ANIMALS ENVIRONMENT SOCIETY) 

A weathervane is seen in front of the moon in Lausanne March 19, 2011. Saturday will see the rise of a full moon called a "Super Moon" when it arrives at its closest point to the Earth in 2011, a distance of 221,565 miles or 356,575 km away. REUTERS/Denis Balibouse (SWITZERLAND - Tags: SOCIETY IMAGES OF THE DAY) 

A member of the Japanese community in Peru makes origami cranes to support Japan's earthquake and tsunami victims at the Peruvian Japanese Cultural Center in Lima March 18, 2011. REUTERS/Mariana Bazo (PERU - Tags: SOCIETY DISASTER ENVIRONMENT) 

Chicken dolls are pictured as 'Campact!' environmental activists perform a protest in Berlin January 18, 2011. German Agriculture Minister Ilse Aigner is holding a meeting with the Germany's federal states agriculture ministers to discuss her action plan to enforce higher standards in animal feed production after a health alert following the discovery of the highly toxic chemical dioxin in feed. The banner reads "Stop agricultural factories". REUTERS/Fabrizio Bensch (GERMANY - Tags: POLITICS FOOD CIVIL UNREST) 

'Campact!' environmental activists perform with mock-up chicken during a protest in Berlin January 18, 2011. German Agriculture Minister Ilse Aigner is holding a meeting with the Germany's federal states agriculture ministers to discuss her action plan to enforce higher standards in animal feed production after a health alert following the discovery of the highly toxic chemical dioxin in feed. REUTERS/Fabrizio Bensch (GERMANY - Tags: POLITICS FOOD CIVIL UNREST) 

A motorist takes part in the "International Motorcyclist Winter Rally 'Pinguinos'" (penguins) in Puente Duero, near Valladolid, central Spain, January 9, 2011. Some 22,000 motorcyclists took part in the rally this year celebrated its 30th anniversary, which features excursions, music and games. REUTERS/Felix Ordonez (SPAIN - Tags: TRANSPORT SOCIETY IMAGES OF THE DAY) 

A man skies down an artificial snow slope located just outside the Olympic Stadium, also known as the 'Bird's Nest', in Beijing December 19, 2010. The stadium, which has been rarely used since it held the 2008 Beijing Olympic Games, is now annually turned into a winter playground in an effort to attract more tourists during the quieter Christmas and Chinese New Year season. REUTERS/David Gray (CHINA - Tags: SOCIETY TRAVEL) 

Animal rights activists wearing chicken costumes take part in a protest outside the Israeli parliament in Jerusalem November 10, 2010. Some 20 activists took part in the protest organised by Anonymous animal rights association on Wednesday, against the use of cages in the Israeli egg industry. The signs read in Hebrew: "Small cage - Big abuse" (L) and "Don't toss us into cages" (R).REUTERS/Ronen Zvulun (JERUSALEM - Tags: SOCIETY ANIMALS CIVIL UNREST) 

Members of environmental group Greenpeace pose around a luxury car covered by oil, outside the European carmakers association ACEA office in Brussels October 20, 2010, to mark the sixth month to the day since the Deepwater Horizon oil spill explosion in the Gulf of Mexico. REUTERS/Thierry Roge (BELGIUM - Tags: ENVIRONMENT CIVIL UNREST POLITICS ANNIVERSARY IMAGES OF THE DAY) 

A bird shape cover protects the club of a golfer in the practice area during the ProAm round of the Evian Masters golf tournament July 21, 2010. REUTERS/Valentin Flauraud (FRANCE - Tags: SPORT GOLF) 

Concert-goers attend the Coachella Music Festival in Indio, California, April 16, 2010. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) 

A pie made in the shape of a bird hangs from a tree branch at a folklore festival near the village of Ozertso on the outskirts of Minsk, March 21, 2010. REUTERS/Vasily Fedosenko (BELARUS - Tags: SOCIETY) 

Artist Vincent J.F. Huang's installation artwork "Suicide Penguins", a comment on global warming using glass penguins and a stuffed toy polar bear, hangs below the Millennium Bridge in London February 13, 2010. REUTERS/Luke MacGregor (BRITAIN - Tags: ENVIRONMENT SOCIETY ENTERTAINMENT IMAGES OF THE DAY) 

Visitors from mainland China tour a jewellery store displaying a hawk-shaped golden figurine, which costs $6,920, in Hong Kong October 7, 2009. Gold hit a record high on the spot and futures markets on Wednesday, with dollar weakness continuing to support sentiment by attracting fresh investment in the precious metal, traders said. REUTERS/Bobby Yip (CHINA BUSINESS) 

Chinese hairdresser Huang Xin carries a replica of the Tiananmen Gate that he made from human hair, at his barbershop in Beijing August 3, 2009. Huang used 11kg (24 lbs) of hair cut from his customers over a five month period to create the replica. Huang started making reproductions from human hair in early 2008, including the Beijing Olympic stadium (also known as the Bird's Nest), the National Aquatics Centre (also known as the Water Cube), two Olympic torches and the Olympic rings. REUTERS/David Gray (CHINA SOCIETY ODDLY IMAGES OF THE DAY) 

Chinese hairdresser Huang Xin (R) cuts the hair of a customer in front of replicas of the Tiananmen Gate and Olympic torches that he made from human hair at his barbershop in Beijing August 3, 2009. Huang used 11kg (24 lbs) of hair cut from his customers over a five month period to create the Tiananmen Gate replica. Huang started making reproductions from human hair in early 2008, including the Beijing Olympic stadium (also known as the Bird's Nest), the National Aquatics Centre (also known as the Water Cube), and the Olympic rings. REUTERS/David Gray (CHINA SOCIETY ODDLY) 

Painted chicks sold as pets for 4 pesos ($0.8 cents) each are displayed outside a market in Manila July 29, 2009. REUTERS/Cheryl Ravelo (PHILIPPINES SOCIETY ANIMALS IMAGES OF THE DAY) 

A protester dressed in a chicken costume from the UNITE trade union holds a sign during the Tesco Annual General Meeting at the Scottish Exhibition and Conference Centre (SECC) in Glasgow, Scotland July 3, 2009. The UNITE members were protesting to Tesco about getting better rights for the workers who supply their meat products. REUTERS/David Moir (BRITAIN BUSINESS FOOD EMPLOYMENT CONFLICT) 

Paper cranes blow in the wind to mark the beginning of a traditional five-day street festival called "C'est is the best" in downtown Zagreb June 3, 2009. "C'est" in local slang means road or street. REUTERS/Nikola Solic (CROATIA ENTERTAINMENT SOCIETY) 

Contestants in the 40th annual Kinetic Grand Championship race their people-powered kinetic sculpture, "The Kinetic Chicken", across the beach in Manila, California, May 23, 2009. The championship is a three-day 42- mile bicycle race over land, sand, mud and water from Arcata to Ferndale. Picture taken May 23, 2009. REUTERS/Kimberly White (UNITED STATES SPORT CYCLING SOCIETY ODDLY) 

Canada's Prime Minister Stephen Harper looks at plastic flamingos placed on the front lawn of his official residence, 24 Sussex Drive, while walking with his daughter Rachel in Ottawa April 30, 2009. Staffers placed 50 plastic flamingos on the lawn to mark Harper's 50th birthday. REUTERS/Chris Wattie (CANADA POLITICS IMAGES OF THE DAY) 

A woman walks past a sculpture by Italian artist Maurizio Cattelan during the press preview of the "A Certain State of the World?" exhibition at the Garage Centre for Contemporary Culture in Moscow March 19, 2009. The exhibition comprises of works from the Francois Pinault Foundation. REUTERS/Alexander Natruskin (RUSSIA SOCIETY) 

Swedish pop singer Robyn holds a sequined bird purse as she arrives at the 51st annual Grammy Awards in Los Angeles February 8, 2009. REUTERS/Danny Moloshok (UNITED STATES) 

Paleontologists Paul Sereno (R) from Chicago University and his colleagues Ricardo Martinez and Oscar Alcocer (L) from the Universidad de San Juan, show a replica of skull of a carnivorous dinosaur discovered in Canadon Amarillo, in the Argentine province of Mendoza, September 29, 2008. The palaeontologists said the specimen was part of the evolutionary change from carnivorous dinosaurs to birds and measured six or seven meters in length by three or four high, walked on two legs, like the Tyrannosaurus Rex, but much smaller. REUTERS/Paulo Paez (ARGENTINA) 

Actors perform at the opening ceremony of the Beijing 2008 Olympic Games at the National Stadium August 8, 2008. The stadium is also known as the Bird's Nest. REUTERS/Lucy Nicholson (CHINA) 

A participant take part in the opening ceremony of the Beijing 2008 Olympic Games at the National Stadium August 8, 2008. The stadium is also known as the Bird's Nest. REUTERS/Kai Pfaffenbach (CHINA) 

Chinese police officers walk next to a replica of the Beijing's National Stadium, also known as the Bird's Nest, at the Beijing airport August 4, 2008. The 2008 Beijing Games will open on August 8, 2008. REUTERS/Carlos Barria (CHINA) 

People walk next to a replica of Beijing's National Stadium, also known as the Bird's Nest, at the Beijing airport August 4, 2008. The 2008 Beijing Games will open on August 8, 2008. REUTERS/Carlos Barria (CHINA) 

Shen Yuanyan, a 74-year-old resident, presents a home-made replica of the National Stadium, also known as the Bird's Nest, and the mascots for the 2008 Beijing Olympic Games in Hangzhou, Zhejiang province, July 29, 2008. Shen used 4,000 sheets of coloured paper to make the Bird's Nest, and more than 10,000 sheets to make the five mascots, local media reported. REUTERS/Steven Shi (CHINA) 

A worker stands next to a replica of the National Stadium, also known as the Bird's Nest, as workers build an Olympic exhibit on Beijing's Tiananmen Square July 23,2008. REUTERS/Jason Lee (CHINA) (BEIJING OLYMPICS 2008 PREVIEW) 

A worker stands on scaffolding next to a replica of the National Stadium, also known as the Bird's Nest, in central Beijing July 19, 2008. REUTERS/Grace Liang (CHINA) (BEIJING OLYMPICS 2008 PREVIEW) 

Two seagulls wait for food at Circular Quay in central Sydney July 8, 2008. REUTERS/Daniel Munoz (AUSTRALIA) 

Women hold decorative birds during a march against violence and crime in San Pedro Sula May 14, 2008. Wearing white and waving handkerchiefs, some 30,000 Hondurans marched in the northern city of San Pedro Sula on Wednesday to condemn a bloody crime wave fueled by violence between rival drug gangs. REUTERS/Edgard Garrido (HONDURAS) 

Fake geese wearing wedding veils in honor of the wedding of U.S. President George W. Bush's daughter, Jenna Bush and her fiance, Henry Hager, in Crawford, Texas, May 10, 2008. Bush and Hager are scheduled to wed this evening at Bush's Central Texas ranch. REUTERS/Larry Downing (UNITED STATES)