The Most Endangered Bird in the Continental U.S.

The Most Endangered Bird in the Continental U.S.

The fight to save the Florida grasshopper sparrow inspires all who love wildlife. 

By Ted Williams
Published: March-April 2013

Miller had crouched behind the net, playing the song from an app on his iPhone. The bird had veered away half a dozen times, an indication that he was "net savvy." The band on his left leg confirmed this. The number, 160184057, revealed that in 2007 he'd been caught in the park by Reed Noss and his team from the University of Central Florida.

The Florida Grasshopper Sparrow Working Group (on which Miller, Sneckenberger, Noss, and Gray serve) fears that the population is increasingly dominated by aging males. Females may be more vulnerable to predation because they incubate eggs and brood young on the ground. And the birds are almost certainly suffering an "Allee effect"; basically, so few remain that they have trouble finding mates, suffer inbreeding, and lose the ability to cooperate in social behaviors such as combined vigilance against predators. Disease and fire ants may be depressing the population further.

Fire ants and nesting Florida grasshopper sparrows like the same habitat--the wetter, treeless parts of the prairie. In the area defended by 160184057, Miller has found broods killed by fire ants. The areas of the park shaded by saw palmettos support few ants, and ground nesters that like this habitat, such as meadowlarks and Bachman's sparrows, are doing fine.

Noss believes the wet sections preferred by the sparrows (perhaps because they produce more insects and grasses) may have become "ecological traps." Not only are they seething with fire ants, they're subject to flooding. "We found the highest success in the park's drier parts even though fewer birds nested there," he says.

Before I released 160184057, he'd hopped and preened in a wire-framed box lined with black velvet while Joel Sartore recorded him in video and still frame. Four strobe lights, powered by a gasoline generator 150 feet away, flashed in radio-controlled synchrony with the camera shutter.

Some 20 years after earth lost its last dusky seaside sparrow, Sartore photographed the preserved carcass for National Geographic. I asked him what he'd felt. "It was a pilgrimage for me," he said. "I was sad and awed at the same time. I held him in my hand, and turned him over a few times. He didn't look anything like he looked in life. Dead birds fade."

Seven years ago, with funding from National Geographic, Sartore started the Photo Ark Project, an effort to get people to care that we are in the process of dooming half the planet's species to extinction in the next 100 years. "I want a record of what will be gone," he told me. "And maybe if I can get people to fall in love with animals like the Florida grasshopper sparrow, we can save a few. It's folly to think that we can keep killing off species and get away with it. If we drive enough to extinction, we'll go extinct, too." So far he has photographed 2,600 species for the project, all without injury or incident.

As recently as 2010 members of the Florida Grasshopper Sparrow Working Group were talking about captive breeding as a last-ditch possibility. Now they've sold it to the Fish and Wildlife Service as the best remaining option. Captive breeding is a bit like throwing antique china out the attic window during a house fire and hoping a few pieces land intact. But occasionally, as with California condors and black-footed ferrets, it works. If the feds had listened to the large element of the environmental community (me included) that opposed evacuation of these species from the wild, both would now be extinct.

On November 6, 2012, Audubon Florida and allies urged the Fish and Wildlife Service to remove eggs or chicks in the spring of 2013. "We consider this the most endangered bird in the continental United Statesand worthy of extra efforts," they wrote.

After some hesitation, the service approved captive breeding in January 2013.

The service has learned from its failure with the dusky seaside sparrow. Like the Florida grasshopper sparrow, the dusky didn't migrate. The sex ratio of the dusky (and very likely the Florida grasshopper sparrow) became skewed in favor of males. The downward trajectories of both are identical and caused by the same kind of habitat destruction, and both apparently suffered from Allee effects.

In 1969 (four years before passage of the Endangered Species Act) the service couldn't do much about the state's proposed highway through the heart of dusky habitat. But it then frittered away the opportunity for captive breeding with endless paper shuffling. When only males survived, Audubon Florida proposed hybridizing them with females of the closely related Scott's seaside sparrow, explaining that by backcrossing it would be possible to get birds that were almost 97 percent dusky in just five generations. "The gene pool of the unique population of seaside sparrows will be lost forever with the death of these surviving males," it warned. The service refused to even consider the plan, calling it "ludicrous." When finally it relented, allowing an attempt by Disney World-- which had the facilities, funds, and inclination--time had run out. A few hybrids were produced, but they didn't live long enough for backcrossing. The last pure dusky, "Orange Band," ancient and blind in one eye, died on June 16, 1987.

 

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Ted Williams

Ted Williams is freelance writer.

Type: Author | From: Audubon Magazine

Comments

Stray Cats

I love my cats! Having said that: feral cats are an invasive non native species that should be eradicated. Cat owners who dump cats or allow their cats to roam and raise feral kittens are the problem. Save the sparrow.

Thank you

It would be an absolute tragedy if the Florida Grasshopper Sparrow would become extinct, as it would be with any species of our animal friends!! I hope and pray there is still time to save this wonderful little bird!!!
THANK YOU.... to all the commited and dedicated folks who are working so hard to keep such a tragedy from happening!! KEEP ON TRUCKIN'!!!

Declining species, feral cats, etc

We need to show compassion for all species. Feral cats exist because irresponsible people literally throw their unwanted cats away. The humane approach for dealing with feral cats is to trap, neuter and then release. Cat OWNERS need to be more responsible by not letting their cats roam the neighborhoos, killing baby animals and birds indiscriminantly. Control your cats in the same manner that dogs must be controlled!

My real concern is the declining habitat for all animals. The only species making out in our current environment are the greedy developers and the politicians. their avarice knows no bounds!

Question the title

I personally would think that a subspecies with less than 100 birds left (Attwater's Prairie Chicken) would be more likely to be considered the most endangered bird.

It's hard to support an

It's hard to support an organization which is represented by man who advocates poisoning ANYTHING. Despite the cuteness of the sparrow, there is no excuse for such cruelty as poisoning homeless cats who only behave as is natural to their species.

Many think Ted Williams is an

Many think Ted Williams is an extremist and a crackpot. And yes, he probably should be fired for his latest blunder by advocating illegal practices. Audubon needs to distance themselves from this guy. If they don't, they will lose alot of credibility.

Florida Grasshopper Sparrow

Read your piece. Signed up to do citizen science at Kissimee Prairie State Park. I can't sit idly by and lose this species because I didn't do anything. See you in the field someday.

Grasshopper Sparrow

Found 2 or perhaps more Grasshopper Sparrows this morning in Sabal Bluff Preserve in Lake County, Florida. I am not aware Grasshopper Sparrows have ever been reported at this location previously. Just wanted to make you aware of this sighting. Photographs are available.

Cruelty

Ted Williams should be fired for his comment advocating the poisoning of feral cats. He is a cruel and reckless person who has no place on the staff of any reputable organization. Shame on you Aububon Magazine for keeping such a vile and reprehensible person on your staff.

Dumb not cruel

You crazy feral cat people are vile and reprehensible, not to mention inappropriate and ignorant. Get your facts straight.

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