White humpback whales are extremely rare in the world. Migaloo was the first one to be seen back in 1991 and since then, he has usually been spotted off the coast of Australia during the annual migration from Antarctica to the tropical waters.
They spotted the white humpback along with a typical black humpback while conducting a whale survey in Cook Strait.
Stunning humpback whales in the wild:
Stunning humpback whales in the wild
Rare white whale spotted in New Zealand
** FILE ** In this Jan. 23, 2005 file picture, a humpback whale leaps out of the water in the channel off the town of Lahaina on the island of Maui in Hawaii. The number of endangered humpback whales in the North Pacific Ocean has dramatically increased to more than 18,000 over the last 40 years, according to a new study. (AP Photo/Reed Saxon)
NEW YORK, NY - SEPTEMBER 15: A Humpback whale in mid lunge, feeding on Bunker off NYC's Rockaway Beach on September 15, 2014 in New York City. (Photo by Artie Raslich/Getty Images)
A Humpback whale jumps out of the waters off Juanchaco on Colombia's Pacific coast, Wednesday, July 15, 2009. Every year between June and November, Humpback whales undertake seasonal migration from the Antarctic Peninsula to the equatorial coast of Colombia to breed, feed and rest. (AP Photo/Christian Escobar Mora)
SEA OF CORTEZ, BAJA CALIFORNIA, MEXICO - 2015/02/20: Humpback whale (Megaptera novaeangliae) slapping the pectoral fin on the water in the Bahia de La Paz, Sea of Cortez in Baja California, Mexico. (Photo by Wolfgang Kaehler/LightRocket via Getty Images)
A humpback whale jumps at a whale watching point, off Okinawa, southwestern Japan, Tuesday, March 25, 2008.(AP Photo/Itsuo Inouye)
This Sept. 7, 2005 photo released by National Oceanic and Atmospheric Administration shows a humpback whale diving among an aggregation of short-tailed shearwaters in Cape Cheerful, near Unalaska, Alaska. The federal government is proposing removing most of the world's humpback whale population from the endangered species list. National Oceanic and Atmospheric Administration Fisheries announced on Monday, April 20, 2015 that they want to reclassify humpbacks into 14 distinct populations, and remove 10 of those from the list. (Brenda Rone/National Oceanic and Atmospheric Administration via AP)
FILE - In this July 11, 2008 file photo, a trio of humpback whales break the surface of the water as they work together in a group behavior known as "bubble feeding" off the coast of Cape Cod near Provincetown, Mass. The federal government is proposing removing most of the world's humpback whale population from the endangered species list. National Oceanic and Atmospheric Administration Fisheries announced on Monday, Apr. 20, 2015 that they want to reclassify humpbacks into 14 distinct populations, and remove 10 of those from the list. (AP Photo/J. Scott Applewhite, File)
Seagulls fly past the fluke of a submerging humpback whale as it feeds on schools of fish at the Stellwagen Bank National Marine Sanctuary off Cape Cod near Provincetown, Wednesday, July 9, 2014. (AP Photo/J. Scott Applewhite)
Humpback mother and calf.Baja Coast MexicoThe 2 whales were swimming along the Baja coast of Mexico, in the Pacific Ocean just outside Cabo
Humpback whale calf with mother shot in Vava'u Tonga in clear water. Sun is sparkling on the whales back.
Pod of humpback whales Maui, Hawaii at sunset.
Water pours off the tail of a humpback whale as it dives at the Stellwagen Bank National Marine Sanctuary off the coast of Massachusetts, Tuesday, April 28, 2009. Temperatures in the Boston area were unseasonably warm, shattering previous records well over 90 degrees in the region. (AP Photo/Charles Krupa)
In a New Zealand's Department of Conservation news release, the boat captain is quoted as saying, "I thought, wow that whale is white, that is amazing!"
The survey team says that the whale has same distinctive features as Migaloo.
According to the New Zealand's Department of Conservation, "a skin sample for DNA analysis was taken from the white whale ... with a biopsy dart and will be compared with Migaloo's DNA to confirm whether it is definitely the same whale. The analysis will also identify whether the whale is albino or whether its whiteness is due to color variation."
The department notes that yellow spots seen on the whale's body are marine algae which will disappear as the white whale spends more time in warmer waters.
Mok, a three-week old male albino barking deer, is shown in their enclosure during a news conference introducing a new member of the Dusit Zoo in Bangkok, Thailand Thursday, July 2, 2009. (AP Photo/Apichart Weerawong)
An albino Great Horned Owl, the only one known to exist, according to the World Bird Sanctuary, sits on his perch at the sanctuary Thursday, April 25, 2002 in St. Louis. The owl is housed next to an extremely rare albino Black Vulture that was sent to the WBS after it was found in Michigan, where wildlife officials feared that it would not survive in the wild.(AP Photo/Tom Gannam)
A rare albino buffalo (C) grazes next to its mother (L) in Hellsgate national park in Naivasha after it was discovered by wardens. Kenya Wildlife Service said that this is the first ever albino buffalo found in the country's park as albinism in wild animals is very rare. Scientists say that though the animal is in good health, it's an easy target as it stands out due to lack of colour pigmentation. (Photo via AFP/Getty Images)
A rare black flamingo, fly in sharp contrast among the other flamingos, is seen at a salt lake at the Akrotiri area near costal city of Limassol, Cyprus, Thursday April 9, 2015. Flamingos taking a break on this east Mediterranean island from their trek back to summer breeding grounds are welcome sight to bird enthusiasts and ordinary folks alike. Martin Hellicar, with the conservation group BirdLife Cyprus said that although black flamingos aren't all that unusual around the world, it's the first time that one has been spotted in Cyprus in recent memory. (AP Photo/Pavlos Vrionides)
A young female albino alligator is seen on March 26, 2014 at the park 'La planete des crocodiles' in Civaux, near the French western city of Poitiers. (Photo by Guillaume Souvant, AFP/Getty Images)
A zoologist holds an albino blackbird (L) and a normal blackbird, at the animal rescue station in Bartosovice, Moravia. There are maximum several dozens of albino blackbirds in Europe. In nature, most of them do not survive because others attack them. This first in Czech Republic albino blackbird is one month old and was found in a park. (Photo by Radek Mica, AFP/Getty Images)
A white peacock opens its feathers in a cage in the Nehru Zoological Park in Hyderabad on June 9, 2011. The peacock is the national bird of India and the white peacock is often mistaken for an albino, but it is in fact a recessive mutation. (Photo by Noah Seelam, AFP/Getty Images)
An albino hedgehog sits on a palm of in a Zoo keeper in the Botanical Garden (Dendrarium) in the Russian Black Sea resort of Sochi, on September 5, 2001. The hedgehog was found at one of the construction sites of the 2014 Winter Olympics. (Photo by Mikhail Mordasov, AFP/Getty Images)
Photo dated 14 September 2003 shows 40-year-old Copo de Niebe (Snowflake), the only albino gorilla in the Barcelona zoo, Spain. Zoo specialists said that the gorilla was suffering from leather cancer and that his life expectancy is of about three months. (Photo by Cesar Rangel, AFP/Getty Images)
An albino kangaroo named Nala (L) jumps around its enclosure at the zoo in the northern German city of Duisburg on October 11, 2012. (Photo by Roland Weihrauch, AFP/Getty Images)
Albino porcupine isolated on black background. (Photo via Getty)
Male albino lion with his lioness, relaxing in the sun. (Photo via Getty)
Albino mouse. (Photo via Getty)
Albino burmese python. 7m long Snake. (Photo via Getty)
Zookeeper Nadezda Radovic kisses a seven-day-old white lion at the Belgrade Zoo, Serbia, Thursday, Oct. 3, 2013. White lions are unique to the Timbavati area of South Africa and are not albinos but a genetic rarity. (AP Photo/Darko Vojinovic)
An albino Wallaby is seen on one of its first trips at the outdoor enclosure at the zoo in Duisburg, Germany, Friday, July 6, 2012.(AP Photo/Frank Augstein)
Two 18-month old albino alligators are presented at the Tropical aquarium in Paris, Thursday Feb. 13. 2014. The two albino alligators arrived in their new home in Paris on Wednesday Feb. 12, after travelling thousands of miles from a fish farm in Florida. The aquarium's new lodgers are two of only twenty to thirty in the world, according to the director of the tropical aquarium Michel Hignette. (AP Photo/Remy de la Mauviniere)
An albino squirrel carries a nut in it's mouth as it climbs up a small tree, Thursday, Oct. 15, 2009, in Eden Park in Cincinnati. (AP Photo/Al Behrman)
An albino baby kangaroo sits in the grassat Enghave Animal & Nature Park in Broerup, 256 kms (159 miles) west of Denmark's capital Copenhagen Friday April 24, 2009 . The albino Bennett kangaroo has been exploring the world outside its motherâs pouch for about two weeks, one of the owners of the park said. Karina Christensen, who owns the park with Niels Christensen, added that the albino kangaroo has not been named yet, because its sex is still unknown. Its mother also has no name, but its grandmother was named Snow White, she said. Albino kangaroos are very rare, with only about 1 of every 10,000 kangaroos being born white, Karina Christensen said. (AP Photo/POLFOTO, Holger Bundgaard) ** DENMARK OUT **
Kada, an albino female rat trained by Alison Smith of Lincoln, Neb, struggles to stay on the rope as it competes in the tight rope event at the Xtreme Rat Challange competition at the Nebraska Wesleyan University in Lincoln, Neb., on Thursday, Dec. 1, 2005. The rats participating in the annual Xtreme Rat Challange are trained by students taking a psychology course at the university. (AP Photo/Nati Harnik)
One of the rarest bats in the world, a completely white (albino) micro bat, nestles on the thumb of carer Pam Tully while recovering from a cat attack at the Batreach Bat Rescue and Rehabilitation Centre at Kuranda, near Cairns in northern Australia, Sunday, March 14, 2004. The bat, a Little Northern Freetail nicknamed "Starshine", is now in recovery and at four months old, weighs just 6 grams - less than a quarter of a ounce. Little or no research has been done into albinoism in bats, with discoveredexamples almost none existent. (AP Photo/Brian Cassey)
An albino Black Vulture, the only one known in existence and just the second ever seen, sits on his perch at the World Bird Sanctuary Thursday, April 25, 2002 in St. Louis. The bird was sent to the WBS five weeks ago after it was found in Michigan, where officials feared that it would not survive in the wild. (AP Photo/Tom Gannam)
An albino loggerhead sea turtle is seen at the Tamar Project (The Brazilian Sea Turtle National Conservation Program) headquarters in Praia do Forte, Bahia state, Brazil, on December 13, 2013. The Tamar Project works on the protection and research of the five endangered sea turtles species in around 1100 km of Brazilian coastal beaches. AFP PHOTO / YASUYOSHI CHIBA (Photo credit should read YASUYOSHI CHIBA/AFP/Getty Images)
A rescued albino blackbird is pictured at the animal rescue station in Bartosovice, Moravia. There are maximum several dozens of albino blackbirds in Europe. In nature, most of them do not survive because others attack them. This first in Czech Republic albino blackbird is one month old and was found in a park. AFP PHOTO/ RADEK MICA (Photo credit should read RADEK MICA/AFP/Getty Images)
A albino king snake is pictured at the terrarium fair in Berlin,Â on February 2, 2013. Around 50 exhibitors are taking part in the trade fair for lizards, snakes, spiders, animal food and trade literature. AFP PHOTO / MAURIZIO GAMBARINI GERMANY OUT (Photo credit should read MAURIZIO GAMBARINI/AFP/Getty Images)
A white albino buffalo named Dakota Miracle grazes in a pasture September 30, 2010 at the National Buffalo Museum in Jamestown North Dakota. The herd of about 30 buffalo boasts three white buffalo that are a big attraction for the museum not only because of the rarity of an albino buffalo but also because of the sacredness that some Native Americans place on a white buffalo. AFP PHOTO/Karen BLEIER (Photo credit should read KAREN BLEIER/AFP/Getty Images)