Passenger Pigeons and the Destructive Power of Humans
Passenger pigeons were once a remarkable story of nature’s abundance. Despite producing only one chick a year, they were the most numerous bird on Earth, sometimes darkening the sky for hours or even days when they flew overhead. But then they told another tale—about the destructive power of humans. We killed them all. The last wild bird was believed to have been shot in Laurel, Indiana, in 1902. The lone captive survivor was named Martha; she died at the Cincinnati Zoo 100 years ago, on September 1, 1914.
In some ways, the passenger pigeons’ success led to their demise. According to an article onYale Environment 360, their abundance made them “the least expensive terrestrial protein available.” Although habitat loss from expanding logging and agriculture played a role, hunting ultimately wiped them out.
Birds have long been the “canaries in the coal mine” for our destructive ways. Extinction of the passenger pigeon sparked the first large environmental movement in the U.S., and led to restrictions on hunting, as well as federal and international regulations to protect migratory birds.
The next great environmental movement was also ignited out of concern for birds. For 20 years after Swiss chemist Paul Müller discovered DDT was extremely effective at killing insects, it was the most widely used insecticide worldwide. But in her 1962 book Silent Spring, Rachel Carson explained how the chemical was also killing birds, and accumulating in the environment and up the food chain, to humans.
Carson’s book inspired me and many others to heed the environmental consequences of our actions, and eventually led to the creation of the U.S. Environmental Protection Agency.
Now, birds face a range of new problems, most caused by humans and many serving as further warnings about our bad habits. According to BirdLife International, one eighth—more than 1,200 species—are threatened with extinction. Habitat destruction is a major cause. Birds can’t survive when the places they live, breed and feed are destroyed or altered, and when food supplies are diminished. Chemicals such as PCBs, polycyclic aromatic hydrocarbons and pesticides are also killing birds, and, like DDT, also often affect humans.
Our insatiable energy appetite also puts birds at risk. Reading some energy-related news and blogs, one might conclude wind power is the biggest bird killer. But that’s far from true. Although poorly situated wind farms, especially ones using older turbine technology, do kill birds, it’s an issue that can be addressed to a large extent, as can problems around solar installations where birds have died. By far the largest energy-related bird killers are fossil fuels, especially coal. Heavy metals like mercury and lead from burning coal kill numerous birds—and even change their songs, which can affect their ability to mate and protect territory. And climate change is affecting many species’ breeding and migratory patterns.
U.S. News and World Report analyzed estimates of how many birds are killed every year by U.S. electricity sources. The numbers are telling: between 1,000 and 28,000 for solar; 140,000 and 328,000 for wind; about 330,000 for nuclear; 500,000 to one million for oil and gas; and a whopping 7.9 million for coal. According to one recent study, between 12 and 64 million birds a year are also killed in the U.S. by transmission lines. The article notes that all those numbers pale in comparison to birds killed by domestic cats: from 1.4 to 3.7 billion a year!
Not only do birds fill us with awe and wonder, but they also provide food and feathers, and keep insects and rodents in check. Their ability to warn us of the drastic ways we’re changing the world’s ecosystems and climate and water cycles can’t be ignored. By working to ensure more species don’t go the way of the passenger pigeon, we’re also protecting ourselves from the effects of environmental destruction.
As individuals, we must conserve energy, shift to cleaner sources and demand that our industrial and political leaders address issues such as pollution and climate change. And we can work to protect wetlands and other bird habitat. We can also join the legions of citizen scientists who are contributing to avian knowledge by posting information to sites such as eBird.org.
It’s not really just for the birds; it’s for all of us.
YOU ALSO MIGHT LIKE
By Grayson Jaggers
The connection between the pandemic and our dietary habits is undeniable. The stress of isolation coupled with a struggling economy has caused many of us to seek comfort with our old friends: Big Mac, Tom Collins, Ben and Jerry. But overindulging in this kind of food and drink might not just be affecting your waistline, but could potentially put you at greater risk of illness by hindering your immune system.
- 15 Indigenous Crops to Boost Your Immune System and Celebrate ... ›
- 15 Supplements to Boost Your Immune System Right Now - EcoWatch ›
- Should I Exercise During the Coronavirus Pandemic? Experts ... ›
- The Immune System's Fight Against the Coronavirus - EcoWatch ›
EcoWatch Daily Newsletter
As the world continues to navigate the line between reopening and maintaining safety protocols to slow the spread of the coronavirus, rapid and accurate diagnostic screening remains critical to control the outbreak. New mobile-phone-based, self-administered COVID-19 tests being developed independently around the world could be a key breakthrough in making testing more widely available, especially in developing nations.
- FDA Approves First In-Home Test for Coronavirus - EcoWatch ›
- When Should You Get a COVID-19 or Antibody Test? - EcoWatch ›
- Trump Plans to End Federal Funding for COVID-19 Testing Sites ... ›
- Trump Insider Embeds Climate Denial Into Agency Reports ... ›
- Climate Denier Is Named to Leadership Role at NOAA - EcoWatch ›
New Jersey is one step closer to passing what environmental advocates say is the strongest anti-plastic legislation in the nation.
Did you know that nearly 30% of adults do, or will, suffer from a sleep condition at some point in their life? Anyone who has experienced disruptions in their sleep is familiar with the havoc that it can wreak on your body and mind. Lack of sleep, for one, can lead to anxiety and lethargy in the short-term. In the long-term, sleep deprivation can lead to obesity, diabetes, and cardiovascular disease.
Fortunately, there are proven natural supplements that can reduce insomnia and improve quality sleep for the better. CBD oil, in particular, has been scientifically proven to promote relaxing and fulfilling sleep. Best of all, CBD is non-addictive, widely available, and affordable for just about everyone to enjoy. For these very reasons, we have put together a comprehensive guide on the best CBD oil for sleep. Our goal is to provide objective, transparent information about CBD products so you are an informed buyer.