The only thing scarier than a tiger is a tiger with wings. That’s the nickname of the fearsome bird of prey, the great horned owl. With its glaring yellow eyes, horn-like feather tufts, and high-pitched screeches, you can understand why it’s so frightening. These terrifying birds of prey are found throughout the continental United States, as well as in Alaska. Like most other owls, the great horned owl is nocturnal, spending its nights awake in search of prey.
Great horned owls are one of North America’s largest owl species, however, they only average about three to four pounds. They make up for their size by being great hunters and having very few predators. Their sense of hearing is so acute that they can detect a mouse stepping on a twig from a distance of 75 feet (23 meters). This owl is one of the very few animals that will hunt skunks, and they may eat more than 4,000 mice and other rodents per year!
The majority of their diet consists of mice, voles, rabbits, and other small mammals. Their flight feathers have such soft edges that they allow them to fly virtually silently and ambush prey, feeding on hawks, crows, waterfowl, and other birds, including smaller owls. To make things even spookier, the great horned owls are rarely even seen due to their nocturnal habits and excellent camouflage.

Spine-tingling omens of death, or just misunderstood? Crows’ association with death and darkness may stem in part from their reputation as scavengers. They could sometimes be seen circling around battlefields and cemeteries, so people imagined that a lurking “murder” of crows, as their groups were named, meant that someone nearby would die soon. But other than easily accessible roadkill, crows actually eat very little carrion overall , as their beaks are too dull to break through the skin of most animals.
It’s not just what crows eat that scares people though, it’s also their uncanny intelligence and behaviors—from their ability to memorize and recognize human faces, to using tools to scavenge for food, to even holding crow “funerals.” This is where the birds will gather around a dead crow and make loud “scolding” sounds for 15-20 minutes, in what researchers have discovered to be a method for crows to determine the cause of death and spread news of danger to others.
Perhaps the scariest sight of all is when crows congregate in large roosts together over late fall and winter in murders of a few hundred up to even two million crows. As cities have grown larger and more widespread across the country, these massive groups have begun to move into urban areas—which in Minneapolis, MN, residents have dubbed their annual “mega-murder.” While crow sightings probably don’t foreshadow death and despair, these little goths are perfect to celebrate in our spookiest season.

Vultures—scraggly-looking, corpse-eating, bald buzzards—are pretty metal. But even more metal? The black vulture (Coragyps atratus). Black vultures live in the southeastern United States, and their range extends through Mexico into South America. They are found in Mayan hieroglyphics and codices, often as a symbol of death, and Mayan texts describe how they will pluck out the eyes and intestines of their prey first. Spooky!
Like most vultures, black vultures primarily feed on carrion, but they will kill and eat the young of other animals as well. While feeding on rotting animal carcasses sounds like something out of a slasher flick, this gruesome behavior actually helps clean up dead animals from the environment and prevent the spread of disease and bacteria.
Black vultures have a worse sense of smell than turkey vultures, so they will wait for turkey vultures to locate “fresh” meat, and then swoop in and feast—fighting off any turkey vultures in the process.
A stomach-churning fun fact—vultures have extremely strong stomach acids to digest their specific diet, and when threatened, they will vomit up this harsh, stinging acid on their attacker as a defense. This tactic seems to work well, as adult vultures have few natural predators!
The common loon’s beady little red eyes mean evil dwells within them, right? Surely they are the spawn of the devil herself. Not to mention their eerie bird calls that sound like something straight out of a horror movie and send shivers down your spine. Listen below while you read their tales of woe!
Loons are masters of the outfit change, as their feathers transition from a tuxedo-like black and white color scheme during warmer months to a softer gray and white during the winter months.
These demon-like water birds are found breeding on lakes surrounded by forests in Canada and the northern United States, including Alaska. In the winter they migrate from northern lakes to coastal ocean waters. Mainly built to live in the water, loons have solid bones (as opposed to the hollow bones of most flying birds) that help them swim underwater to catch their prey. They typically stay close to the water’s edge but only come ashore to nest.
As for their red eyes filled with ill intent, this trait is actually thought to potentially help loons locate prey more effectively while submerged. They can eat quite a lot, too: biologists estimate that loon parents and their two chicks can eat about a half-ton of fish over a 15-week period.
Bloodthirsty for more spooky content? Read last year’s Halloween blog about wildlife-inspired horror movie icons.
The final rule has some noted improvements over a proposed rule issued last year. For one, the final rule has a more ambitious target for overall emissions reductions, set at 32% by 2030. Also, the EPA listened to the countless voices who called for more emphasis on renewable energy.
Building on the soaring growth of clean sources of energy like wind and solar, the final rule has incentives and goals that are projected to result in an increase in renewable power generation from 22% to 28%. This is extremely welcome news.
The EPA has also included changes to give states even more latitude in terms of achieving compliance by moving back the compliance date and allowing states more time if they have reliability concerns. But compliance should not be a problem as more than half of states are already on track to meet the proposed rule’s 2020 benchmarks for reducing carbon pollution, with 14 of those states on track to exceed those benchmarks.
These measures come none too soon. The first five months of 2015 were the hottest on record, on pace to surpass 2014’s record year. A recent study published in the journal Nature finds an increasingly visible link between global warming and extreme weather, with warmer temperatures adding fuel to superstorms like Sandy.
Climate change poses a direct threat to wildlife and communities. If carbon pollution continues unabated, scientists predict that higher temperatures will lead to extinction of 50% of species around the globe.
Here are four species that are cheering about the President’s Clean Power Plan:
Climate change will bringer warmer, dryer weather that will significantly reduce the number and quality of these breeding ponds. Without action, like the Clean Power Plan, duck hunters may soon be asking, “Where did all the ducks go?”
For instance, in Virginia, where brook trout are the official state fish, recent climate modeling suggests brook trout could be gone from the state by mid-century. The Clean Power Plan is a big step in the right direction to ensuring brook trout will keep swimming in our streams.
Heat is already taking a toll on moose. In addition to heat stress, warming temperatures are allowing parasitic ticks to flourish, and tens of thousands of ticks can attach themselves to moose, literally sucking the life out of them. The results are high fatalities particularly in juvenile moose. In the last 25 years, one of Minnesota’s moose populations has plummeted from 4,000 to fewer than 100. Declines are also being seen in Maine and New Hampshire.
Without action like the Clean Power Plan, it is likely that moose populations will largely be driven out of the lower 48 states.
While we can choose not to eat fish – a choice we shouldn’t have to make – wildlife can’t. Wildlife, like loons, that survive on fish in our lakes have no choice but to eat contaminated fish. A recent report found that 75% of loons in once pristine Adirondack lakes far from coal plants had mercury levels that posed high to moderate risks.
Mercury is so toxic, that 1/70th of teaspoon to the make the fish in a 25 acre lake unsafe to eat. As the Clean Power Plan powers down mercury spewing coal and powers up renewables, EPA estimates that the Clean Power Plan will remove thousands of pounds of mercury from the environment. That’s good news for both people and loons who like to eat the fish they catch.
Now it’s up to states to craft implementation plans to ensure the Clean Power Plan’s goals are realized. If states fail to act, the EPA will implement a federal plan on the state’s behalf. However, the plan is designed to make implementation easy for states. As National Wildlife Federation’s President and CEO Collin O’Mara explains:
The President has provided states with the flexibility necessary to achieve meaningful reductions in a way that unleashes American innovation to maximize benefits and strengthen the economy. From the Northeast’s Regional Greenhouse Gas Initiative to California’s carbon trading system, state-based and regional limits on industrial carbon pollution are proven effective at both cutting pollution and creating jobs.
There’s still a lot of work to do. But the President has taken a huge step towards reducing carbon pollution and has set the stage for further national and international action to keep ducks, trout, moose and loons a thriving part of our children’s future.
Urge Congress to stand strong for wildlife and climate action!
But this rule – which promises to move us away from dirty fuel sources to cleaner sources like wind and solar – will provide significant other benefits to wildlife in addition to tackling climate change.
Fossil fuel power plants, particularly those fueled by coal, are one of the chief sources of toxic and other pollution into our waters and air. They kill and poison fish and wildlife and make fish in many lakes, streams and rivers unsafe to eat. By moving us toward cleaner energy, the Clean Power Plan will make our air and waters cleaner, our wildlife healthier, and help allow us to enjoy wildlife based activities with less pollution and health risks.
Currently, most states have fish advisories in place concerning thousands of water bodies because mercury from power plants have resulted in serious health risks associated with eating fish. Coal fired power plants are the source of over half of human introduced mercury into the environment. We should not have to be afraid to eat the fish we catch.
Mercury also poisons other wildlife, like loons, that have no choice but to eat contaminated fish. A recent report found that 75% of loons in pristine Adirondack lakes far from coal plants had mercury levels that posed high to moderate risks.
While mercury and other toxic air pollutant (like arsenic and hydrochloric acid) levels from power plants are being reduced thanks to a 2012 rule, reducing reliance on coal and increasing using of non-polluting energy sources will further take these toxins out of our waters and our fish.
When coal plants remove toxins like arsenic, chromium and nickel out of their smoke emissions, they end up in sludge waste that is often discharged into nearby waters. As a result, according the EPA, existing fossil fuel power plants contribute 50-60 percent of all toxic pollutants discharged into the nation’s surface waters by industrial categories. This poisons our waters, our wildlife, and ourselves. Increased reliance in clean sources of energy like wind and solar – which will be promoted by this rule – will help ensure these toxins stay out of our waters and don’t endanger wildlife.
Fossil fuel power generation requires a significant amount of water to cool equipment and steam. A typical coal plant with a once-through cooling system withdraws between 70 and 180 billion gallons of water per year and consumes 0.36 to 1.1 billion gallons of that water.
By EPA’s own conservative estimates, industrial cooling water withdrawals annually result in the death of at least 2.2 billion age one-equivalent fish, crabs, and shrimp, and a minimum 528 billion larvae. EPA has also identified 88 threatened or endangered species, such as sea turtles, at risk from cooling water intake and more than 130,000 baseline losses of threatened and endangered species.
According to EPA’s estimates, the Clean Power Plan will remove between 424,00 to 471,00 tons of sulfur dioxide and 407,000 to 428,000 ton of nitrogen oxides, which will mean less acid rain in the streams and lakes downwind of power plants. These pollutants create a host of other severe problems for wildlife, such nitrogen deposition which can fuel the toxic algal blooms in places like the Chesapeake Bay.
The benefits don’t end there. Reducing our reliance on fossil fuel and coal and moving swiftly to clean energy will also reduce pollution sources such as smog and coal ash, which threaten wildlife and habitat areas.
Building a clean energy future is clear win for wildlife. EPA’s Clean Power Plan is the biggest step towards that future ever proposed. It is important for wildlife that a strong rule becomes law.
Speak up for wildlife: tell the Environmental Protection Agency that you support the ground-breaking limits on carbon pollution from existing power plants!
Canada’s boreal forest not only plays a vital role in carbon sequestration, clean water and wildlife habitat for North America and in fact the entire world – it is also the bird nursery for our continent, where millions of birds migrate to breed. But that nursery is being destroyed by mining and drilling practices that have already killed thousands of birds and are putting millions more at risk.
Among the hundreds of species at risk are several that are well known and loved by birders, sportsmen and outdoor enthusiasts in the Northeast, including the Goldfinch, Common Loon, Pileated Woodpecker, Evening Grosbeak and Hooded Merganser. Vermont’s state bird, the hermit thrush, is also threatened. From other regions of the country, species as exotic as the critically endangered Whooping crane, America’s tallest bird, are also directly threatened by tar sands operations.
A few others of the 130 internationally protected American migratory and songbird species threatened by tar sands development include the Snow Goose, Great Blue Heron, Northern Pintail, Wood Duck, Siskin, Trumpeter Swan, and Cedar Waxwing.
Countless waterfowl and songbirds have died in oil-laden tailings ponds in the past several years, and the destruction continues. But New England has an opportunity to slow the expansion of the tar sands industry, therefore preventing bird deaths, habitat impacts and the increased threat of climate change.
As long as the tar sands industry is encouraged by the Canadian government to expand at a breakneck pace no matter the cost, birds from all over North America will in danger. However, some of the power to slow this expansion is in the hands of the people of Vermont, New Hampshire and Maine. We can block the industry from reversing the aging Portland-Montreal pipeline, which runs directly through our three states, and using it to transport tar sands to overseas markets.
Preventing this use would not only directly protect birds, moose and other wildlife that rely on the 15 streams and rivers just in Vermont that the pipeline crosses, it would block another outlet for the tar sands industry to sell its toxic product. The chorus of Vermonters and others in the region calling on our leaders to stand up and say No is growing louder by the day. Join the call by clicking the link below:
Help protect our New England birds and other wildlife at risk from tar sands by telling President Obama to say no to the Keystone XL pipeline.
Paruk and his colleagues are trying to uncover the secrets of winter loon biology—at least for birds that winter in and around Louisiana’s Barataria Bay. For the past four years, with funding from the Earthwatch Institute, Snow Family Foundation and BRI, the researchers have been making new discoveries about winter loons’ feeding, migration and other behaviors.
Sadly, their work also is beginning to suggest that loons may have been harmed more by the BP oil disaster than scientists previously realized. Because Barataria Bay was hit hard by the spill, Paruk’s teams have been taking blood samples from the birds they capture, looking specifically for polycyclic aromatic hydrocarbons, or PAHs. The class of hydrocarbons most toxic to wildlife, PAHs cause a range of health problems, including anemia, liver damage, cancer and immunosuppression.
His findings are troubling. That loons had significantly more PAHs in their blood three years after the spill than immediately following it suggests that hydrocarbons may be making their way up the food chain, Paruk says. And unlike his first two years’ results, he adds, “the concentrations we found in 2013 may be high enough to cause physical harm.”
Last month, Paruk wrapped up his fourth field season in the Gulf. In addition to measuring PAH levels, the researchers this year are also analyzing blood for signs of Corexit, the chemical dispersant used to break up the spilled oil. (In Minnesota, scientists have found evidence of Corexit in white pelicans that were in the Gulf during the spill.) In addition, an immunologist will study the samples to see if the birds’ immune systems are damaged.
Another possibility, however, is that loons affected by the oil spill may be producing fewer chicks on their northern breeding grounds, so fewer juveniles are showing up during winter. Next summer, Paruk will launch a new project in Canada to assess the status of breeding loons that winter off the Louisiana coast. If he finds signs of trouble, it will not be too surprising. “After all,” Paruk says, “we are still seeing impacts on Alaskan wildlife more than 20 years after the Exxon Valdez.”
Loons are far from the only Gulf species at risk. To mark this week’s fourth anniversary of the April 20th explosion of the Deepwater Horizon oil rig, NWF has released a new report, Four years into the Gulf Oil Disaster: Still Waiting for Restoration, that looks at how 14 wildlife species are faring in the aftermath of the disaster.
Make sure that every penny of BP’s penalties are spent on Gulf research and restoration.
Photo by Flickr member McGill’s Nature in Motion
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Photo by Flickr member maryanne.pfitz
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Twenty plus years in the making, the new pollution limits on power plants will cut mercury emissions by 91%, reduce acid gas emissions 91%, and significantly cut arsenic, lead and nickel emissions.
The announcement is a tremendous victory for people and wildlife. National Wildlife Federation’s effort to curb mercury air pollution started back in September 1999 when we released Clean the Rain, Clean the Lakes: Mercury in Rain Is Polluting the Great Lakes (pdf)
The report warned of mercury’s potency as a neurotoxin that can cause neurological and brain damage at low levels in people and reproductive hazards in wildlife.
Excerpt from NWF’s 1999 mercury report:
The Clean the Rain Campaign…will press for the control and eventual elimination of mercury emissions that are contaminating the rain. It will call for the implementation of the following actions…
Coal-fired power plants must cut and eventually eliminate their combustion of coal (a major source of mercury, as well as smog and acid rain-producing pollutants).
Each year, EPA’s new air toxic pollution rules will prevent 11,000 thousand of premature deaths, 4,700 heart attacks, 130,000 cases of childhood asthma and 6,300 cases of acute bronchitis. And it will prevent mercury exposure to children that can adversely affect their developing brains – including effect on their ability to walk, talk, read and learn.
The rules will also provide employment for thousands. The updating of older power plants with modern air pollution control technology will support 46,000 new short-term construction jobs and 8,000 long-term utility jobs.

Read NWF’s report Game Changers: Air Pollution, a Warming Climate, and the Troubled Future for America’s Hunting and Fishing Heritage that shows how mercury, carbon dioxide, and other air pollutants are directly impacting numerous species, including black ducks, moose, and walleye, that are revered as part of our country’s angling, hunting and conservation heritage.
Over the last year, thousands of NWF members and supporters have continued the campaign started in 1999. They have attended public hearings, signed postcards, made phone calls, and sent over 50,000 messages supporting the EPA’s new efforts on mercury and pushing back against polluters attempts in Congress to stop these new air pollution protections.
So join NWF as we thank the EPA for taking action to protect your kids and wildlife from the dangers of mercury and toxic air pollution. Together, we can all breathe a little easier.
Learn more about mercury pollution >>
With the holidays right around the corner, House Republican leaders are scrambling to fulfill the last-minute wish lists of their good friends, big polluters.
Knowing that Congress must pass the federal spending bills before year’s end in order to continue funding the government, some members are scheming to push through anti-wildlife measures that would otherwise never make it into law.
A whopping 51 anti-environmental “riders”–so called because they ride along appropriations bills while having nothing to do with spending–are being considered, making it one of the most aggressive assaults in our nation’s history to wildlife, clean air, and clean water.
At risk are cuts to programs in the Endangered Species Act, National Wildlife Refuge System, and State and Tribal Wildlife Grants Program, which have been essential to protecting and restoring our wildlife and natural resources. In addition, some of the most egregious riders attempt to:
Passing a spending bill should not be an opportunity to force through unrelated matters that have not received proper consideration or public scrutiny. We can responsibly and successfully fund the federal government in a way that protects our nation’s wildlife, natural resources, and public health.
Urge your members of Congress to stand firm against anti-wildlife riders in the federal spending bill.
The Common Loon (also known as the Great Northern Diver or Great Northern Loon) is large member of the loon family of birds. The Common Loon breeds in Canada, parts of the northern lower-48 states and Alaska, and Greenland.
But these Common Loons (known for their haunting calls) and their young are in jeopardy from the toxic mercury pollution that travels in the air from coal-fired power plant smokestacks, and accumulates within the northern lakes where loons breed.
We have the power to reduce harmful pollution threatening loons by advocating for the strong mercury limits proposed by the Environmental Protection Agency.
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The EPA’s proposal would limit the mercury and air toxic pollution that comes from power plants – the country’s largest source of these toxic emissions. Right now, mercury pollution in the air contaminates our lakes, rivers, oceans, and forests. After landing in streams and rivers, a form of mercury called methylmercury builds up in fish and the wildlife that eat fish. The risk of mercury exposure also extends to terrestrial species such as songbirds, bats, spiders, and amphibians.
Mercury has many damaging effects on wildlife species. Fishincluding trout, bass (large and small mouth), northern pike, carp, walleye, salmon; birds such as the Common Loon, white ibis and great snowy egret;and mammals like the mink and river otters, have all been found with harmful levels of mercury accumulation.
The effects of mercury in fish, birds and mammals range from reproductive to behavioral. In fish there is a concern for reproductive issues and how this could mean a lower fish population in the future.
Common Loons do not know the fish they are eating are poisoned, and unlike us, cannot avoid foods with high mercury. After years of eating mercury-laden fish, loons with high mercury levels face difficulties that impact their ability to survive and for their young to survive. The more mercury they are burdened with, the more likely they are to spend less time at their nest taking care of their young, and the more likely they will even have asymmetrical feathers that make their long migration flight more difficult.
Both the mink and river otter in New England have been tested for mercury, and incredibly, studies have found levels of mercury in their bodies associated with severe effects including mortality.
Wildlife are obviously suffering from mercury pollution. What can we do? We can support the EPA’s proposed air toxic ruling that will put limits on the amount of mercury that coal-fired power plants can put into our air and water.
Now is the time to speak up for wildlife such as the Common Loon. You can help make sure their haunting yodel is not lost in our northern wild places from mercury pollution.