Wednesday, February 3, 2016

White Deer: Understanding a Common Animal of Uncommon Color

You're driving through your neighborhood and see the usual suburban white-tailed deer in a vacant field. You've been seeing these deer a lot more lately, so you hardly take notice. Then a flash of white catches your eye. A white deer.

You pull over to look at this striking, beautiful animal. It seems precious, rare. But what exactly is it?

It turns out people have been captivated by white deer for centuries, and perhaps millennia. The ghost-like appearance of these animals has attracted myth, superstition and rampant scientific misinformation for an equally long period of time.

That misinformation continues to this day. And it stands to reason that, with whitetails becoming more abundant near population centers, more people will be sharing their own tales of these unusual creatures.

Here's the real story of the white deer.

The White Deer of Story

As a young boy, one of my earliest memories is visiting my grandparents' home and waiting for my grandfather to return from an afternoon of hunting the nearby woods. The stories he told helped instill my lifelong love of field sports and wildlife.

One morning, he came in from a squirrel hunt with a big smile on his face. "No one is going to believe this," he began. "But I saw something I've never seen today."

He was sitting against an oak tree waiting for squirrels when a flash of white caught his eye. He looked to see a large, "albino" buck approaching him. The deer sniffed, catching his scent – but it didn't flee. Instead, it trotted towards him, stopping just a few feet away. He stuck out his hand and the deer allowed him to scratch its forehead.

For several years, stories of this deer roaming around the woods of Snydertown, Pennsylvania were common. As a boy, I imagined encountering this mysterious beast. But decades later, with countless time spent observing and hunting deer, I have yet to see a white deer in the wild. But I still hear the stories, many of them strange or even mythical.

White deer are real, but they may not be what you think.

Albino, Leucistic or Piebald?

Most people, like my grandfather, refer to white deer as "albinos." While deer can be albinos, it's exceedingly rare.

Albinism is a congenital condition defined by the absence of pigment, resulting in an all-white appearance and pink eyes. Many plant and animal species exhibit albinism (including humans). It's difficult to accurately determine how frequently this condition exists in wild animals, because albino animals tend not to survive long. They have poor eyesight and are conspicuous, making them easy prey. Research suggests that albino alligators, for instance, survive on average less than 24 hours after hatching.

Leucistic squirrel. Photo © Conrad Kuiper / Flickr through a Creative Commons license
Leucistic squirrel. Photo © Conrad Kuiper / Flickr through a Creative Commons license

The same undoubtedly holds true for deer, and in fact true albino deer are rarely reported. Instead, most white deer exhibit a condition commonly known as leucism, a recessive genetic trait found in about one percent of all white-tails. As with albinism, leucism can be found in nearly all mammals.

Leucistic animals lack pigment over all or part of their bodies Leucistic deer can be varying levels of white – some contain white splotches, some are half brown and half white, some appear nearly all white. Mixed brown and white animals are often known as piebald deer. (Confusingly, many deer biologists and hunters use "piebald" to describe all leucistic deer).

The nose is black, as in a "normal" deer, and eyesight is not usually affected.

Many other animals exhibit leucism. Birders often report seeing unusual white birds (rendering field guides nearly incomprehensible). White squirrels have become famous tourist attractions in several U.S. towns.

Leucistic deer generally can survive longer than albino deer. Still, they are not very well camouflaged in the forest, making them stand out to predators. In a habitat with its large predators still present, a leucistic deer's chances of survival are slim.

As wildlife photographer and deer expert Leonard Lee Rue III notes in his recent book Whitetail Savvy (a must-read for deer nerds), "Many piebald deer also exhibit hunched backs, bowed legs, and short, rounded noses."

Piebald whitetail deer. By U.S. Fish and Wildlife Service [Public domain], via Wikimedia Commons
Piebald whitetail deer. By U.S. Fish and Wildlife Service [Public domain], via Wikimedia Commons
Today, human hunters are the most common large predator over much of the white-tailed deer's range. Humans bring their own selection pressures to hunting, and they're quite different from those of wolves or mountain lions.

I'd guess that, because of that, you're more likely to see a white deer today than at any point in the whitetail's history.

The Curse of the White Deer

Imagine a Pleistocene hunter peering over a hill to see a white deer – something the hunter would undoubtedly never have seen before. What is this animal? It looks other-worldly: an apparition.

It is easy to see how such an animal might be viewed as sacred and off limits. That belief has informed hunting habits and even regulations to this day.

One of the most persistent legends is that a hunter killing a white deer will experience a long run of bad luck, perhaps never bagging another deer. This idea seems almost universal among hunting cultures. Hunting writer Peter Flack notes in his book Kudu that hunters across Africa believe misfortune (sometimes including death) will befall any hunter who kills a white antelope.

A piebald deer at the Seneca Army Depot in New York. Photo © blmiers2 / Flickr through a Creative Commons license
A piebald deer at the Seneca Army Depot in New York. Photo © blmiers2 / Flickr through a Creative Commons license

When game regulations were comprehensively enforced in North America in the early 1900s, conservationists believed that rare wildlife needed to be protected. White deer qualified as rare, so many state game departments prohibited hunters from killing them. This regulation remains in effect in at least three states and parts of two others.

The most interesting example of white deer protection is Seneca Army Depot in New York. The military installation was surrounded by a fence in 1941, essentially creating a 10,600-acre deer preserve.

The white-tailed deer proliferated and GI's began hunting them. The hunters began noticing a few white deer around (which were leucistic, not albino). In 1951, the depot commander established a rule protecting these white deer from hunting.

A fenced reserve protecting the animals from predators, hunters targeting brown deer and inbreeding associated with an isolated population allowed this genetic condition to proliferate. Today, an estimated 200-300 of the 800 whitetails on the property are leucistic. It's likely the largest concentration of these deer to ever exist.

The depot is closed and the future of the property – which has high development value – is uncertain. What will happen to the white deer if and when the fences come down? As has been the case throughout history, many people desperately want to save these deer, recognizing in them rarity that should be protected.

White deer and "normal" colored white-tail deer at the Seneca Army Depot in New York. Photo © Devin Kennedy / Flickr through a Creative Commons license
White deer and "normal" colored white-tail deer at the Seneca Army Depot in New York. Photo © Devin Kennedy / Flickr through a Creative Commons license

It seems that hunters in many parts of the country no longer have the cultural or legal prohibitions against shooting white deer. Many hunters find them interesting trophies. But society at large feels differently.

Hunters who kill albino and leucistic deer often find themselves the targets of internet outrage and even death threats. A hunter bagging a leucistic moose set off a firestorm of social media hate. Message boards fill with comments like "What kind of sick person kills such a rare animal?"

Many white deer protectors use the language of conservation: they see a rarity that should be protected, much as we would protect a California condor or black-footed ferret. Something so rare should never be killed by humans.

Let's be clear, here. A leucistic or piebald white-tailed deer is a genetic anomaly. It would always be susceptible to predators, whether or not it was pursued by humans. The Seneca Army Depot is not a model of protecting rare wildlife; it's an example of the consequences of intensive human management. These deer may indeed have cultural and historical value to humans, but let's not confuse them with endangered wildlife.

I too have been fascinated by these deer since hearing those stories by my grandpa. A white deer intrigues me as a student of deer. They're fascinating to observe and ponder. But, in this era of over-abundant whitetails – when we desperately need scientific management to protect our forests and biodiversity – we must move beyond the idea of the white deer as a sacred beast.

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