As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.
Showing posts with label leucism. Show all posts
Showing posts with label leucism. Show all posts

Friday, 27 September 2019

Rare, 'Dalmatian-like' spotted magpie photographed beside Victorian road



Updated 13 Sep 2019, 8:07am
Sandy Goddard was travelling from work this week, on a road she uses most days, when an unusual sight caught her eye.
Key points:
A rare spotted magpie with a beak full of worms has been seen outside Geelong, Victoria
The bird's unusual colouring is caused by a condition called leucism
Local residents say they suspect it is feeding young
"I spotted him on the side of the road just outside of Geelong, in Victoria," Ms Goddard said.
"I thought it was a weird looking rock at first. Then he moved!"
Ms Goddard enjoys bird photography and said she was lucky to capture some clear images, after stopping on the side of the road.
"I really hope he doesn't get hit by a car, it's a bloody busy road," she said.
"He was right out the front of a house and they probably see him everyday and don't even realise how special it is."
Magpie a rare bird
Birdlife Australia's Mick Roderick said the bird's unusual spots were caused by a rare condition called leucism, a genetic variation in the cells responsible for producing black pigment.
"Birders would probably describe [it] as being 'piebald', but its plumage is explained by a condition called 'leucism'," he said.
"It's very uncommon.
"This bird has a good mix of dark (normal) and leucistic feathers, which is what makes it look piebald."
'Dalmatian magpie'
While most Australians are familiar with magpies and their distinctive, warbling song which resonates through both bush and city, many keen twitchers report they have never seen a magpie quite like this before.
Ms Goddard's photos were shared on a bird photography page on social media, where they have generated a lot of interest.

Wednesday, 7 November 2018

The black AND white bird! Wildlife lover, 62, stunned after discovering rare blackbird with 'albino' stripes


Twitcher Kim Oliver pictured the unusual bird in Coventry rummaging for food
The bird's colourings are the result of a rare plumage condition called leucism
The defect has been spotted in a number of British bird species 

PUBLISHED: 13:52, 26 October 2018 | UPDATED: 14:07, 26 October 2018

A wildlife-lover was left stunned after discovering a rare blackbird near his home with both black and white markings.

Twitcher Kim Oliver, 62, pictured the unusual bird rummaging for food in autumn leaves on a footpath near a busy road in Coventry.
The retired photographer said he has never seen a bird like it in over 50 years of bird watching.
Rather than being albino, the blackbird's striking colourings are believed to be the result of a rare plumage condition called leucism.

The defect has been spotted in many British birds, but almost half of all reported cases have been blackbirds.

A wildlife-lover was left stunned after discovering a rare blackbird near his home - with both black and white markings

Mr Oliver first spotted the bird last week while walking near his home in Binley, Coventry, and said it took three visits before the bird started to recognise him and not fly off.

The curious creature became so tame on his final visit that it hopped over to him so he could capture these amazing images. 

Mr Oliver said the stunning bird reminded him of a Dalmatian dog and was one of the most unusual he had come across in his five decades of bird watching.

He added: 'I have never seen, yet alone heard of, this type of blackbird. Albino yes, but not like this.

'It looks more white than black depending on the angle and it took me three visits to confirm exactly what it was. 
'It is incredibly striking. It's like a Dalmatian version of a blackbird. I've heard of albino birds but these markings were different.'

It is not known why the leucism affects blackbirds in this way- but some experts believe it could down to stress, ageing or a genetic disorder.

Ornothologist Paul Stancliffe, from the The British Trust for Ornithology (BTO), said: 'To see a blackbird with the odd white feather is not that unheard of but the more white you see the more rare it becomes.

'There are only two or three reports a year of white blackbirds, such as this so it is rather uncommon.

'There are several theories as to why leucism occurs but nobody knows for sure.



Wednesday, 26 October 2016

In a first, extremely rare white bird graces Australia!




Last Updated: Friday, October 7, 2016 - 11:41

New Delhi: Now this is what we call a once-in-a -lifetime discovery! An extremely rare white bird has been spotted in northern Perth suburb of Mount Lawley, for what is believed to be the first time.

Willy wag tail.jpgResidents of the northern Perth suburb of Mount Lawley were surprised to find the white willie wagtail making its home amongst the suburb's tall trees.

The bird is believed to have a rare condition known as leucism, which causes a partial loss of pigmentation compared to the more common albinism which causes only a loss of the pigment melanin, Xinhua news agency reported.

Brice Wells, a member of Birdlife West Australia, said the sightings of leucistic birds were rare because they rarely survive.

"It's the first one I've heard of," Wells told the ABC on Thursday. "Often they don't survive, sometimes because they're not accepted by their peers.

"They become a little more noticeable, so they're often preyed on quite early and often because they're strange looking they find it hard to get a mate. So the opportunities for them are very limited."

(With IANS inputs)
First Published: Friday, October 7, 2016 - 11:41



Sunday, 13 March 2016

What the heck kind of bird is that?!

By: Sudbury Northern Life Staff
Mar 02, 2016 - 6:00 PM 

Sudburian snaps rare bird photo, gets a 'Wow!' from The Birdman

Northern Life reader Linda Couture snapped this photo of a rare sight: A partially albino male pine grosbeak. Photo supplied
Northern Life reader Linda Couture snapped
 this photo of a rare sight:
A partially albino male pine
grosbeak. Photo supplied
When Linda Couture was watching some birds feeding in her backyard on March 1, one of them caught her eye.

It was a strange white bird with a yellow beak that appeared to have been splattered with red paint.

"One of them, I have never seen before," she told Northern Life. "I have checked on the Internet and in my bird books, but couldn't find anything on this bird. He looks a lot like a grosbeak, but it has a yellow beak and his body does not have the same colour as a grosbeak ... it was kind of eye catching."


Couture reached out to Chris Blomme, a local ornithologist and Northern Life's bird columnist (you can find a new column from 
The Birdman every month. Here's his latest.

Originally, Couture thought it may have been some kind of crossed breed, but Blomme said her original assessment that the bird is a grosbeak was correct the one — with one slight difference.

"This is a really neat bird. It is a partial albino male pine grosbeak," Blomme wrote back in response to her query. "The term leucistic (leucism) is often applied. There was a leucistic Canada goose at Lilly Creek for a whole spring one year.

"This is fairly unusual and I have not seen one before in this species."



Friday, 12 February 2016

Kingfisher is all white as photographers finally catch up with legendary rare bird


17:32, 5 FEB 2016
UPDATED 18:32, 5 FEB 2016
BY MIRROR.CO.UK

The all-white bird is believed to suffer from a rare condition meaning its feathers have no pigment and has only been spotted a handful of times

A couple of amateur photographers were left thrilled after they managed to capture a rare and elusive white kingfisher on camera.
The incredibly rare white Kingfisher
The all-white bird had become legendary among photographers at the Queen Elizabeth National Park in Uganda - although it had only been spotted a handful of times.
The birds - usually known for their brightly coloured plumage - are often spotted flitting along the river banks.

But this unusual critter is believed to suffer from a rare condition called Leucism - meaning its feathers have no pigment.


Wednesday, 21 January 2015

Unusual bird spotted near Osakis

By Al Edenloff on Jan 20, 2015 at 7:32 a.m.

Jim and Gail Trutwin have had an unusual guest at their home on Smith Lake west of Osakis the past couple of months – a white downy woodpecker at their suet feeder.

The bird’s unusual coloring led the Trutwins to believe it may be an albino woodpecker but its eyes are black, not the tell-tale pink associated with albinos.

Also, the bird isn’t pure white; there is some color in the feathers. According to information on the National Audubon Society’s website, the bird could be a partial albino or it could have Leucism, a genetic mutation preventing melanin, which affects a bird’s coloring.

Thursday, 14 August 2014

Bird fans in flap over unusual swift rescued in Devizes

6:30am Tuesday 12th August 2014 in News
By Jill Crooks, Devizes area senior reporter


An unusual coloured swift which is being treated at Wiltshire Wildlife Hospital has created interest.

The silver male bird was taken in by the hospital at Newton Tony, near Salisbury Plain, after it was rescued by a woman in Devizes.

The bird was in the gutter of the woman’s house following storms two weeks ago.

After she put a broom up to it, it crawled on.

The young swift, which is just a few weeks old, is thought to have a bruised right shoulder which the hospital has been treating and will be ready to be released soon.

Staff at the hospital have not seen a swift this colour before and wildlife care supervisor Marilyn Boyes Korkis said: “It’s very unusual, whether it’s the only one in England I don’t know. It’s just the most beautiful bird.”

Friday, 19 July 2013

White, leucistic, Heermann's Gull in California

A reader from Santa Barbara in California has sent us this image of a leucistic Heermann's Gull. Jane Kern took the photo, and has managed to include a 'normally' coloured gull alongside so we can see the difference, many thanks Jane.

Leucism (or Leukism) 
Leucism is a very unusual condition whereby the pigmentation cells in an animal or bird fail to develop properly. This can result in unusual white patches appearing on the animal, or, more rarely, completely white creatures. Albinism is a different condition. The easiest way to tell the difference between the two is that in albinism the eyes are usually pink or red, and albinism affects the entire animal, not just patches. This occassionaly causes very excited biologists to think they have discovered a new species, when in fact leucism is the cause of the unusual markings they have seen.


WHITE, LEUCISTIC, HEERMANN'S GULL IN CALIFORNIA. PHOTO COURTESY OF JANE KERN

Sunday, 12 May 2013

Leucistic chaffinch near Balmoral

Leucistic Chaffinch in Aberdeenshire

One of our readers, Ian Cairns, took this image of a bird, probably a chaffinch, apparently showing signs of leucism. Mr Cairns spotted this bird near Loch Muick on the Balmoral estate in Aberdeenshire in May (NB, still snowing!).

Leucism (or Leukism) 
Leucism is a very unusual condition whereby the pigmentation cells in an animal or bird fail to develop properly. This can result in unusual white patches appearing on the animal, or, more rarely, completely white creatures. 

Images courtesy of Ian Cairns.
This is the third leucistic chaffinch we have a record of, following one from Kent and another from Scotland.

Wednesday, 1 May 2013

Unique natural beauty: Leucistic red-winged blackbird near Green Bay

By Paul A. Smith of the Journal Sentinel
April 29, 2013

The spring bird migration in North America offers many of the most colorful wildlife viewing opportunities of the year.

In addition to the chance to see rare or unusual species as they pass through, spring features birds in breeding plumage, avian finery designed to help attract a mate.

This spring, courtesy of Nancy Nabak of Green Bay, we're privileged to witness a once-in-a-lifetime bird in Wisconsin.

Nabak has shared photos of a beautifully-colored bird that's especially noteworthy because it's not in the animal's standard dress.

Take a look at the spectacular photo below and try to guess the species.

It's a "leucistic" male red-winged blackbird. Leucism is a genetic mutation that results in a lack of pigment. 

Nabak, an avid birder and chair of the Bird City Wisconsin program in Green Bay, said she received a call earlier this month from a friend who had seen an unusual bird.

Nabak attempted to locate the bird near Green Bay. On the third try she was able to see and photograph it. 

Birds with unusual plumage are among the most difficult to identify. They don't appear in field guides and the abnormality may hide or change some key color features. But in this case Nabak knew shortly after seeing the bird it was a leucistic redwing.

"What a beauty," Nabak said. "I watched him interact with other redwings."

Several of Nabak's photographs show the leucistic redwing displaying its red shoulder patches, a typical behavior for male redwings.

Red-winged blackbirds are native to Wisconsin and among the most abundant bird species in North America. The species typically migrates south of Wisconsin for the winter. Male redwings normally feature an all-black body and head with red-and-yellow shoulder patches or "epaulettes."

Most people have heard of albinism, or the absence of pigment. Leucism comes in two main varieties: paleness, an equal reduction of melanin in all feathers; and pied, an absence of melanin in some feathers creating white patches.





Sunday, 14 April 2013

Leucsitic penguin from Antarctica


Adelie penguin with unusual colouration.
April 2013.  Elaine Heron took these images of an apparently leucistic penguin on the Antarctic Peninsula that she saw in February this year. This is not the first leucistic Adelie penguin that we have had reported to us. We also have an image of a bird that was seen and photographed in 1963 on Avian Island, off Adelaide Island on the Antarctic Peninsula in 1963, near the British Antarctic Survey Base by reader Mike Fleet.

Leucism (or Leukism)
Leucism is a very unusual condition whereby the pigmentation cells in an animal or bird fail to develop properly. This can result in unusual white patches appearing on the animal, faded colouring, or, more rarely, completely white creatures. 

Albinism is a different condition. The easiest way to tell the difference between the two is that in albinism the eyes are usually pink or red, and albinism affects the entire animal, not just patches.  


Wednesday, 6 March 2013

Look at This Angel Bird!


Michelle Gaggiotti, who lives in Virginia Beach, came across this little bird that looked like it flew off an artist’s canvas right outside of a 7-Eleven on Dam Neck Road.

Gaggiotti even ran home to get her camera to snap this and several other photos of the angel bird.

In the bird world, this little one would often be called leucistic (partial albino) since it is not a true albino-- pure white with pink eyes.

Notice the pale yellow spot on the side of its breast. It also had a yellow spot on its other side and on its rump, Gaggiotti said.

The subtle yellow coloring led Gaggiotti to the assumption that the lovely creature is a yellow-rumped warbler.

“Very friendly too,” she said, “and allowed close-ups!”

It’s a wonder that a pristine beauty like this has lived for as long as it has because you would think it would be an easy target for a predator.

But if it makes it through mating season, we may see more little white yellow-rumped warbler beauties in the area.


Tuesday, 12 February 2013

Unusual redshank seen in North Wales

Leucistic redshankDennis Bannister

February 2013. One of our readers, Dennis Bannister, recently sent us this unusual looking redshank that he spotted in North Wales. 

Leucism (or Leukism)
Leucism is a very unusual condition whereby the pigmentation cells in an animal or bird fail to develop properly. This can result in unusual white patches appearing on the animal, or, more rarely, completely white creatures.

Albinism is a different condition. The easiest way to tell the difference between the two is that in albinism the eyes are usually pink or red, and albinism affects the entire animal, not just patches.

This occassionaly causes very excited biologists to think they have discovered a new species, when in fact leucism is the cause of the unusual markings they have seen.

Wednesday, 23 January 2013

Leucistic mandarin duck in Yorkshire

January 2013. Wildlife Extra reader Margaret Richardson has sent us this photo of a very pale Mandarin duck that has appeared on her local pond this winter.  

Margaret said "The Male Mandarin Duck has spent the winter on the pond for the last two winters and seems to have returned again this year with a Leucistic female."

Pale 'leucistic' Mandarin duck seen in East Yorkshire by Margaret Richardson
Mandarin ducks
The species was once widespread in eastern Asia, but habitat destruction and an unsustainable level of exports for the pet trade reduced populations in Russia and China tojust a few hundred pairs in each country, whereas there are estimated to be 7000 pairs in UK, where the bird isn't even a native, as a result of escapes and releases. Japan still has a healthy population.


Sunday, 20 January 2013

2 leucistic blackbirds in Herefordshire


Leucistic blackbirds in Hereford
January 2013. Wildlife Extra has reported on many leucistic and albino animals and birds in the last few years, but I have never seen one myself, until yesterday. As ever, I wasn't looking for them, or for anything else. I had just dropped by daughter at college and I stopped somewhere I have never been before to walk the dog for 10 minutes.

I caught a flash of something unusual as I walked passed some scrub. A very bright black and white bird, all the wrong size and shape for a blackbird. Naturally, as I was in an urban park I didn't have binoculars or a camera, so I retrieved the 'emergency' camera from the cars glove box, and went back in search.

To cut a long story............ There were two leucistic blackbirds within 30 yards of each other, presumably from the same brood. They were in the scrub, and I didn't have the greatest camera with me (the photos are decidedly average, and that is being harsh on average), but at least I can now join the leucistic club.

Perfect camouflage?
I will go back and try again, but it is now snowing, so for just a few days, they now have perfect camouflage. 


Tuesday, 15 January 2013

Leucistic bald eagle in north west USA


Leucistic eagle spotted on Nooksack River
January 2013. Chris Teren, a wildlife photographer from Washington State in USA recently took these gorgeous photos of a leucistic bald eagle on the Nooksack River in the north of the state. The eagle looks even more attractive than usual with the white patches on his body and wings.
Chris has more images of the eagle, and he also has some other lovely wildlife shots, especially of orca. Click here to go to Chris Teren's website.

Leucism
The patches are caused by leucism; Leucism is a very unusual condition whereby the pigmentation cells in an animal or bird fail to develop properly. This can result in unusual white patches appearing on the animal, or, more rarely, completely white creatures.

Monday, 24 December 2012

Leucistic robin has 'Santa beard'


‘Santa Robin' is timely leucistic bird
December 2012. This remarkable bird has been reported to the British Trust for Ornithology's (BTO) Abnormal Plumage Survey.

The timely ‘Santa Robin', which was seen by Ian Wilson in Derbyshire, is a leucistic bird. This inherited disorder causes parts of a bird's plumage not to have their normal colour and to appear white, often affecting areas around the face and on the wings.

Most common in blackbirds
It's not just Robins that are being spotted through the BTO Abnormal Plumage Survey. In total, over 1,500 birds across more than 35 species - ranging from Blue Tit and Chaffinch to Buzzard and Coot - have already been recorded in the UK's gardens. Blackbirds with unusual white feathers have been logged most often, with members of the crow family, including Jackdaw, Carrion Crow and Rook, also featuring highly.


Monday, 12 November 2012

Leucistic birds lack colors of their species


I occasionally hear from readers who report a partially white bird — a bluebird, a house sparrow or some other type - in their yards.

While my wife and I were conducting a recent birding workshop at Block Creek Natural Area, between Fredericksburg and Comfort, we saw a chipping sparrow with a white head and neck, as though it had a cowl over its otherwise brown head. The other day, I was visiting a friend in Houston who had a blotchy white house sparrow coming to his bird feeder.
White patches in bird plumage is called leucism, a condition in which some feathers have scant deposits of pigment. It's caused by defective genes that restrict the body's melanin from entering certain feathers or feather groups. Unlike albino birds, leucistic birds have normally colored eyes, beaks, legs and feet.

The white patches on leucistic birds have resulted in such monikers such as "pied" or "piebald" birds, terms that seem to have originated among poultry farmers. Some people refer to leucistic birds as having partial albinism, which is misleading because leucistic birds are not albinos.

Albino birds have a genetic mutation that causes an absence of an enzyme called tyrosinase, which synthesizes melanin. As a result, albino birds generally lack melanin in their bodies and plumage. Their eyes, skin, beak, legs and feet typically have no color. However, carotenoids, organic pigments that come from plants in the birds' diets, may enter some feathers, giving albino birds slight coloration.