The Shakespearean Sci-Fi Nightmare: How European Starlings Conquered America
If you’ve ever looked up at the sky and seen a massive, swirling cloud of birds dancing in perfect synchronization, you’ve witnessed a murmuration. It is one of nature’s most breathtaking sights.
But if you look closer at the individual birds responsible for this beautiful display, you'll find a creature wrapped in cosmic plumage—shimmering with oily greens, purples, and constellation-like white speckles. This is the European Starling (Sturnus vulgaris).
While they are stunningly beautiful, they are also one of the most successful, destructive, and aggressive invasive species in North American history.
Here is the wild story of how a literary obsession turned into an ecological crisis.
The Ultimate Literary Blunder
Most invasive species are introduced by accident—hitchhiking on cargo ships or escaping from nurseries. The European Starling, however, was imported intentionally because of a deep love for William Shakespeare.
In 1890, a wealthy drug manufacturer and eccentric literature enthusiast named Eugene Schieffelin decided that the United States should be home to every single bird mentioned in the works of the Bard.
Because starlings get a brief mention in Henry IV, Part 1, Schieffelin released 60 European Starlings into New York City’s Central Park. A year later, he released 40 more.
Schieffelin’s romantic vision succeeded beyond his wildest dreams—and created an absolute ecological nightmare.
From 100 to 200 Million: Why They Conquered America
Those original 100 birds didn't just survive; they thrived. Today, there are an estimated 200 million starlings stretching from Alaska all the way down to Mexico.
How did they take over an entire continent so quickly?
Aggressive Cavity Nesters: Starlings nest in holes (cavities) found in trees, buildings, and birdhouses. Because they don't dig their own holes, they forcefully evict native birds like bluebirds, woodpeckers, and tree swallows from theirs.
Unfussy Eaters: They will eat almost anything. Seeds, berries, insects, garbage, livestock feed—you name it, they'll devour it.
Massive Safety in Numbers: Their giant flocks protect them against predators and allow them to overwhelm local bird populations through sheer numbers.
The Hidden Cost of the Starling Invasion
While they might just look like pesky backyard birds, starlings inflict massive damage on both infrastructure and ecosystems across the country.
1. Agricultural Devastation
Starlings love grains and fruit. Massive flocks can descend on orchards, vineyards, and grain fields, wiping out entire harvests in a matter of days. They also raid cattle feedlots, eating the high-protein feed meant for livestock and contaminating the rest with their droppings, which can spread diseases like Salmonella.
2. Pushing Native Birds to the Brink
By stealing nesting sites and monopolizing food sources, starlings have caused noticeable declines in native cavity-nesting bird species. Woodpeckers and bluebirds are forced to compete with an incredibly aggressive adversary that doesn't take no for an answer.
3. Aviation Hazards
Because starlings fly in such tight, massive numbers, they pose a severe threat to airplanes. In 1960, a turboprop plane flying out of Boston collided with a flock of starlings, causing the engines to fail. Tragically, the plane crashed, resulting in 62 fatalities. It remains one of the deadliest bird-strike incidents in aviation history.
Because starlings are an invasive species, they are not protected by the Migratory Bird Treaty Act. This means homeowners and wildlife managers have a bit more freedom to manage them. If you want to keep them from overtaking your backyard, here are a few tips:
Use Starling-Proof Feeders: Starlings have weak feet and struggle to feed upside down. Suet feeders that require birds to cling underneath will favor native woodpeckers and exclude starlings.
Choose the Right Bird Food: Starlings love mealworms, sunflower seeds, and corn. They hate safflower seeds, thistle, and nyjer. Switching your seed mix can clear them out.
Block Nesting Cavities: Seal up holes in your eaves, vents, and siding before spring nesting season begins to prevent them from setting up shop in your home.
The European Starling is a fascinating paradox. It is a stunningly beautiful bird capable of mesmerizing aerial acrobatics, yet it is a living reminder of what happens when humans recklessly interfere with local ecosystems.
The next time you see one shimmering on a tree branch, you can appreciate its beauty—just make sure it isn't stealing a bluebird's home!
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