Tag: population

Volunteers Tally Migrating Cranes

  • The Phyllis Haehnle Memorial Sanctuary in southeast Michigan is home to thousands of migrating Sandhill Cranes each fall. (Photo by Mark Brush)

The colder weather and shorter days are keeping most of us inside. But for a group of volunteers it’s the perfect time to head outdoors. They’re putting on their gloves and setting up their spotting scopes to go out and watch one of their favorite birds get ready for the long trip south. The Great Lakes Radio Consortium’s Mark Brush reports these birds gather by the thousands before migrating:

Transcript

The colder weather and shorter days are keeping most of us inside. But
for a group of volunteers it’s the perfect time to head outdoors. They’re
putting on their gloves and setting up their spotting scopes to go out and
watch one of their favorite birds get ready for the long trip south. The
Great Lakes Radio Consortium’s Mark Brush reports these birds gather by
the thousands before migrating:


(Sound of cranes)


It’s a dreary and damp evening next to this marsh in rural southeast
Michigan.
The dampness has that edge of cold to it that’s hard to escape.
And while most people are heading to their warm homes for the day –
things here at the Haehnle Bird Sanctuary are just getting started as
volunteers count cranes:


(sound of cranes flying overhead and volunteers)


“I got a whole line of coming in over the flats out there – oh, man – It’s
startin’… how many?”


“Thirty-four.” (sound of clicks)


With the help of a clicker, three volunteers from the Audubon Society
count the birds.
Fortunately for them, the birds they’re counting are… really big.
The Greater Sandhill Crane is one of the biggest birds in the region.
They glide into the sanctuary by the thousands with their gangly legs
dangling behind them.
They’re counting the birds for the U.S. Fish and Wildlife Service.
This is part of a wider effort in the region to get an overall count of the
crane population.
They have one night to count – and tonight’s the night.


Gary Siegrist is one of the volunteers. He says the birds come into this
wetland after a day feasting in the farm fields:


“They’ve been out feeding all day… and they stage… this is one of two
places in southern Michigan where they stage. And when they get to a
point where they have enough fuel in their bodies enough fat built up, and
their food supplies are gone, and maybe the mud lake is frozen over, then
they’ll find a favorable wind and head south.”


The gathering is an instinct for these birds. During the summer months
they spread out across the region in pairs. But when it’s time to migrate
they get together in big flocks before they head to Florida. And when they
gather in large numbers – it can get noisy.


Gary Siegrist says the bird’s call is one of the things that draws him here
to count the birds year after year:


“People don’t realize that it’s the oldest living bird species. They’ve got a
relative that goes back 35 or 65 million years – it’s the time of the
dinosaurs…the bird is fantastic and if you can hear the call, you
can hear it in the background, it kind of sends shivers down your back. It
reminds you of a different time.”


(sound of cranes flying by)


The volunteers also spend their time chatting with people who visit the
Sanctuary. And even on a cold night like tonight – people have come out
to see the birds.


Phil DeLang drove with his wife and grandson two and a half hours just to
watch the gathering… and they do it every year:


“I think all of nature is precious, I me an it’s really precious when you
think of things becoming extinct, like the passenger pigeon, what a
tragedy, it never should have happened. I’m just glad there’s places like
this. People have taken the effort to give these birds a home.”


(sound of counting)


The birds continue to arrive by the hundreds as the sun begins to set. As
darkness falls – the volunteers tally up their final number:


“Twenty nine seventy five. Tweny-nine seventy five? Yeah. O.k.”


The count for the evening is over. And by their calculation nearly 3000
birds are settling down for the night.


(3 seconds of sound at night)


The volunteers head home to double check their math – and send in their
final numbers.


(bring up morning birds)


The next morning at the sanctuary the birds are waking up and heading
into the farm fields.


We caught up with Ron Hoffman here. He’s the guy who coordinates the
official crane count for this region. And between all the volunteers that
counted last night – they spotted 4,600 cranes.
Ron has been studying these birds since the 1960’s when they were just
coming off the threatened species list. And he’s seen the bird’s population
grow steadily over the years.


But Ron Hoffman and the other volunteers see a pattern developing in this
area – a pattern that could threaten the number of cranes that use this
sanctuary. The Haehnle sanctuary is surrounded by spreading housing
developments. They fear these developments would use up farmland,
which is important to the birds:


“I’m sure we’ll always have cranes, but at the same time if this area within
ten fifteen miles of hear is so built up that there’s not the food reserves
here for the cranes to feed, then the number of cranes using this would be
diminished.”


But no matter how many cranes are out here, you can bet Ron Hoffman
and the other volunteers will be counting them year after year.
They care about these birds.


While we were talking, he interrupted to watch a young bird fly by:


“This guy is really lost – look he’s coming back over.” (sound of little
bird) Did you see him craning his neck and looking? He’s trying to find
his parents…”


Hoffman says his biggest hope for the Greater Sandhill Crane is that the
population will remain stable, so that he and others can continue to
experience what he calls one of the wildlife spectaculars in this region.


For the Great Lakes Radio Consortium, I’m Mark Brush.


(sound of cranes)

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Bugs Released to Munch on Invasive Plant

  • Purple loosestrife's looks are deceiving. It's a beautiful plant, but researchers say it has caused enormous damage in many parts of the country. An imported beetle has now shown significant signs of controlling the plant.

Purple loosestrife is a beautiful plant. It’s tall… and each cone-shaped stem produces hundreds of flowers. When the plants bloom in mid-summer they can create a sea of purple in wetlands throughout the region, but the ability of the plant to spread and reproduce in great numbers is what concerns scientists and land managers. Over the years they have been working to control it. The Great Lakes Radio Consortium’s Mark Brush says one way they’re trying to control it is by releasing a bug to eat the plant:

Transcript

Purple Loosestrife is a beautiful plant. It’s tall… and each cone-shaped
stem produces hundreds of flowers. When the plants bloom
in mid-summer they can create a sea of purple in wetlands
throughout the region… but the ability of the plant to spread and
reproduce in great numbers is what concerns scientists and land
managers. Over the years, they have been working to control it.
The Great Lakes Radio Consortium’s Mark Brush says one way
they’re trying to control it is by releasing a bug to eat the plant:


Roger Sutherland has lived next to this wetland for more than 35
years.

He helped build a boardwalk over the soggy marsh so that he can
get a close-up view of some of his favorite plants:


“You see that plant with the big green flower? Yep. That… and
there’s more along here… that’s a pitcher plant. These are insect
eating plants and there’s another one called sundew here… here’s
some right in here…”

(sound under)


But like many wetlands throughout the country, this wetland has
been invaded by a plant originally found in Europe and Asia.


Purple Loosestrife was introduced as an ornamental plant.
It was a
beautiful addition to gardens, but once it took
hold in the environment,
it out-competed native plants.

Frogs, birds, and insects have relied on these native plants for
thousands of years. Purple Loosestrife is crowding out their habitat.


“We’re going to get a lot more shade with this loosestrife.. and so
these plants that are on these hummocks here…
these little insect
eating plants and so on… just can’t tolerate that shade, so we’ll
probably lose ’em unless I can keep it open here… and I am trying
to keep some of it open.”


The plant spreads quickly… that’s because one plant can produce
more than two million seeds that spread with the wind, like dust.

So when it moves into an area, it often takes over creating a thicket
of purple with a dense root system.

Land managers have seen populations of ducks, and turtles
disappear when loosestrife takes over…

And research has shown that the plant can reduce some frog and
salamander populations by as much as half.


So land managers wondered what to do to stop the spread of this
weed.

They initially tried to control the plant by digging it up… or by
applying herbicide to each plant.

Trying to kill the plants one by one is hard work… especially
considering how abundant purple loosestrife is.

But researchers have hope because of a bug.


(Sound of volunteers planting loosestrife)

Volunteers have gathered here in Ann Arbor, Michigan to plant
purple loosestrife.

They’re putting dormant loosestrife roots into potting containers and
adding fertilizer.


(more sound)


When the plants leaf out they’ll be covered with a fine mesh net and
become home to a leaf-eating beetle known as galerucella.

And galerucella loves to munch on purple loosestrife.

The volunteers are creating a nursery to raise more beetles.

Once they’ve got a bunch of beetles growing on the plant… they’ll
take it to a nearby wetland… and the bugs will be released into the
wild…


(sound up)


Linda Coughenour is a member of the Audubon Society.

Her group is working with state and local agencies to raise and
release these beetles.

She says tackling purple loosestrife invasions is a big task – and
governments need help from volunteers to deal with the problem:


“This is a serious problem throughout the entire Great Lakes
wetlands… it has migrated from the East Coast to the Midwest…
so, uh.. the problem’s just too big – so they thought up doing this
volunteer project and they’ve enlisted people all over the state… and
we’re just one of those.”


Volunteers have have been releasing their beetles into this wetland
for few years now and they’re beginning to see progress:


“It’s going really well… for a while we got off to a slow start, but for two
years now we’ve found evidence that the beetles are reproducing on their
own. We see little egg masses, we see larva that are starting to eat
the plants, we see adult beetles on the plants that have wintered
over. And that’s the thing, to get them to do it on their own.”


But releasing a foreign species into the wild is always a concern.

There are a number of examples of bugs released into the wild to
eliminate a pest, but ended up causing a problem themselves.

But before importing a bug that will prey on plants – the federal
government requires testing to make sure it won’t eat other plants.


The tests have been done.


And researchers feel that this is an extremely finicky bug…


Berndt Blossey is a specialist on invasive plants and ways to control
them.

He says the beetles were tested on native plants before they were
allowed to import the bugs:


“And it was shown there that they will not be able to feed and
develop on the plants. They will occasionally nibble on them, but
they will not be able to develop on them and they usually move off
after they have taken a bite, and they move off to other plants.”


The leaf beetle is not the only bug researchers are importing.

They’re also importing two other beetles known as “weevils.”

One that feeds on loosestrife flowers, and one that feeds on its root
system.

Blossey says more than one bug is needed to keep the plant from
growing back:


“Loosestrife will rebound from resources in the root stock. If you
have the root feeder in the system as well, these fluctuations will be
dampened, so loosestrife will not be allowed to comeback to higher
levels.”


(sound of wetland up)


People who admire the diversity of plants and animals in wetlands
like the idea of keeping purple loosestrife in check.


Roger Sutherland welcomes the bugs.

He believes they’ll help him keep this wetland open for the plants,
birds, and insects he’s come to know over the years:


“We know that the purple loosestrife will probably always be here.
But if we can bring it down to a manageable level, where you’re going
to have a pocket here and a pocket there… and you can kind of
maintain the integrity of this wetland system… then you can’t ask for
anything more than that.”


And researchers say that’s the goal.

To help these wetlands reach a balance… so that plants and animals
that have evolved to rely on these wetlands for thousands of years…
can continue to do so.

For the Great Lakes Radio Consortium, I’m Mark Brush.

Related Links

Low Sperm Counts Linked to Pesticides?

A study last year found that men living in rural areas have lower sperm counts than their urban counterparts. Now, researchers say they’ve found a possible reason for the difference. The Great Lakes Radio Consortium’s Chris Lehman has more:

Transcript

A study last year found that men living in rural areas have lower
sperm counts than their urban counterparts. Now, researchers say
they’ve
found a possible reason for the difference. The Great Lakes Radio
Consortium’s Chris Lehman reports.

Researchers compared urine samples of men with high and low sperm
counts.
They found that men with low sperm counts were far more likely to have
high
levels of three common pesticides in their urine. Many farmers use the
pesticides to kill weeds and insects on corn, soybeans, and other crops.


Doctor Shanna Swan is a researcher at the University of Missouri. She
says
the study showed that men from all walks of life in the rural areas are
affected, not just those who work directly with the chemicals…


“This is not a study of farmers, it’s not a study of men who work in
industry producing these chemicals. This is the general population.”


Swan says it’s unclear how the pesticides reach the men. She says it’s
likely that men are ingesting the chemicals through their drinking
water.

For the Great Lakes Radio Consortium, I’m Chris Lehman.

Moose Population Gets a Checkup

  • Researchers collect as much information as they can to take advantage of the rare opportunity of being close to a tranquilized moose. Photo by Stephanie Hemphill.

Many wildlife lovers consider moose to have a special mystique. Adult moose are bigger than horses, and they seem fearless. But biologists don’t know much about many moose populations. A team of researchers is just beginning to learn about one herd of 4,000 moose in the Northwoods. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:

Transcript

Many wildlife lovers consider moose to have a special mystique. Adult moose are bigger than
horses, and they seem fearless. But biologists don’t know much about many moose populations.
A team of researchers is just beginning to learn about one herd of 4,000 moose in the
northwoods. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:


Half a dozen big four-wheel-drive pickups are parked at a boat landing on MacDougal Lake. It’s
about 30 miles west of the Lake Superior shore, in the heart of the Superior National Forest in
Northeastern Minnesota. The forest is twice the size of Delaware.


It’s 25 degrees. At the edge of the frozen lake, men in conservation officer uniforms are standing
around a small fire. They’re waiting to hear from the helicopter. The crew on the helicopter is
shooting moose with a tranquilizer gun. They need to get up close to the animals to learn more
about them.


Scientists think more moose could be living in this area. Mike Shrage is a biologist with the
Fond du Lac band of Chippewa. He says they’d like to know why there aren’t more moose here.
There are several possible reasons.


“Wolves, bears, lack of habitat, hunting and other kinds of human-related mortality, automobile
accidents.”


Shrage is listening to a radio cradled in a canvas holster on his shoulder. He cocks his head to
catch every word.


“There’s three of them there.”


The helicopter crew has spotted some moose.


“Yeah, I think they’re bulls.”


“These are three bulls. It’s not uncommon this time of year, you’ll get small groups of them
hanging together for awhile. Little bachelor groups.”


Shrage says the helicopter crew will try to chase one of the moose into an open area, like a frozen
lake, where they can get an easy shot.


“And if it lays down right in the lake, then they can sit down on the ice next to it. It makes
everything a lot easier.”


“Yeah, he’s gonna hopefully drop in the spot where they can get right to him.”


“I think they must already have a dart in him and they’re just waiting for it to take effect.”


The helicopter drops off a crew member to stay with the moose, and comes back to the boat
landing to pick up a radio collar.


(sound of helicopter)


Counting moose is a challenge. A recent survey in this area showed a drop from 5,000 to 4,000
animals in one year. But researchers admit there could be a 25% margin of error in those figures.
That’s because it’s hard to find the moose in heavily wooded areas. The collaring project will
make counts more accurate.


Three biologists are gathered around the latest moose to be fitted with a collar. He’s a mature
bull. He’s lying on his side in the middle of a huge frozen swamp.


He’s blindfolded to make the process less stressful. He seems to snore, while the biologists poke
and prod.


(sound of moose)
“Sounds pretty peaceful, doesn’t it? Pretty nice looking animal.”


They take blood samples to check on hormones and blood chemistry, and to look for disease.
They also pull a tooth to send to a lab. They can get an exact age by measuring the rings on the
tooth.


Glenn Delgiudice takes notes on the animal’s fat reserves. That’s a good indication of its overall
health.


Delgiudice even uses an ultrasound machine to measure the fat in the moose’s rear end.


“Rump fat is one of the main fat depots of these animals, and also one of the first to go. They
mobilize their fat depots generally in a sequence. So we measure the depth of the fat with
ultrasound.”


Another key indicator of the animal’s health is the condition of its hair. This moose has most of
its hair. They aren’t all so lucky. Some of them have scratched a lot their hair off.


“Rick yesterday saw a calf of one of our cows that was, ‘what’d you say Rick, only 25% hair?’ So
that one’s been rubbing and scratching for a long time. And, of course, when they’re doing that
rubbing and scratching and biting, they’re not foraging, and it can drain them over time.”


The collar has to fit just right. If it’s too loose, a moose can get a foot caught in it. If it’s too
tight, it can bind, especially in the fall mating season when the bulls’ necks get thicker.


“Yep, that looks good.”


(clicking)


Finally the moose is given an antidote to the tranquilizer, pain-killer, and sedative that have kept
him immobile for about half an hour.


“You know, you’ll see his ears twitch, and he’ll start to lift his head,” Delgiudice says. “The
moose are better at getting up than deer typically. They just get up, loosen up a little bit, and
then lope away.”


The moose struggles up, stands for a minute, and then saunters off toward the trees.


That’s moose number five for the day. The team is planning to track 60 moose for five years.


It’ll tell them what kills these moose and what’s keeping the population from growing.


For the Great Lakes Radio Consortium, I’m Stephanie Hemphill, in the Superior National Forest.

Increase in Households Pressures Environment

An increase in the number of households throughout the world is threatening the environment, according to new research in the scientific journal Nature. The Great Lakes Radio Consortium’s Erin Toner explains:

Transcript

An increase in the number of households throughout the world is threatening the environment,
according to new research in the scientific journal Nature. The Great Lakes Radio Consortium’s
Erin Toner explains:


Researchers studied what they call “hotspot countries” – places where native species are
threatened by human activity. They counted 155-million more households since 1985. The study
says the reason for the increase is because fewer people are living under one roof. The number of
households grew even in countries where the population is going down.


Michigan State University researcher Jack Liu took part in the study. He says households with
fewer people aren’t necessarily more efficient.


“For example, in a two person household you would have one refrigerator. In a four-person
household you also have one refrigerator. So the energy efficiency in the two-person household
would be lower.”


Liu says reasons for the increase in households include the high divorce rate and a drop in the
number of generations living under the same roof.


For the Great Lakes Radio Consortium, I’m Erin Toner.

Too Much of a Good Insect?

It’s no secret that the Great Lakes are cleaner than they were 25 years ago. But some of the wildlife that’s rebounded because of the cleaner water is causing some problems for people who live near the lakes. The Great Lakes Radio Consortium’s Paul Cox explains:

Transcript

It’s no secret that the Great Lakes are cleaner than they were 25
years ago. But some of the wildlife that’s rebounded because of the
cleaner water is causing some problems for people who live near the
lakes. The Great Lakes Radio Consortium’s Paul Cox explains:


(sound of waves and seagulls)


It won’t be long before a sleeping multitude awakes in the Great Lakes.
Millions of mayfly larvae have been burrowed in the muddy bottom of the
lakes. Soon, they will rise, take wing and fly off in search of a mate.


Often, they end up on shore. There they get on everything.


Breck Coombs has seen them invade the car dealership he manages in
Port Clinton, Ohio on Lake Erie.


“I have bugs all over the whole building. It’s almost like you’ve got to
have a second set of clothes when you come into work a lot of times.
You sit down and they make a big mess on your clothing. It’s pretty bad.”


During mayfly season his workers have to wash every car in the lot every
day so the bugs and their droppings don’t mar the paint.


The mayor in Port Clinton is Tom Brown. He says since the mayfly has
been increasing in population the insect has caused some bizarre
events. The way he describes it, it sounds as though it’s like living in an
Alfred Hitchcock thriller. He remembers once getting hit by the bugs
while he was at a drum and bugle corps competition.


“We were watching the show and all of a sudden I looked to the sky
and I saw a black cloud. The mayflies came onto the field, they began to
swarm. I was covered with mayflies from head to toe.”


Aside from the mess they make, the mayflies are – for the most part –
harmless. Fred Snyder is an aquatic biologist with the Ohio State
University Extension Service. He says the mayfly is a bug with no bite.


“Mayflies do not have working mouths. This is a mouthless insect. It has no stinger.”


But Snyder says the mayfly is still something of a nuisance because they
don’t smell very good.


“One evening just coming back into town I noticed a very,
very disagreeable smell. The place stunk. Sort of like dead fish, but
different. But very strong.”


And… the sheer numbers of the mayflies are a problem because the
insects not only fly by the millions, they die by the millions.


Mayor Brown says when that happens… the dead bugs can be a bit of a
hazard.


“When they were heavy we had signs on the streets: ‘Slippery, mayfly hatch.’
And there were a couple of accidents from people sliding around on those mayflies.”


As you might imagine… millions of smelly, messy and dead mayflies are
bad news for any town… but especially so in a tourist town such as Port
Clinton.


But biologist Fred Snyder say the mayflies are also good news. The huge
mayfly population means the lake is environmentally healthier.


“Mayflies have a high need for oxygen. So when you find
good numbers it tells you that the oxygen level in the water is very
good.”


It’s not always been that way. Pollution in the lake took its toll. Oxygen
levels dropped. And the mayflies almost disappeared by the 1950’s.


Dr. Carl Richards, with the Minnesota Sea Grant program, says the
presence of organisms such as the mayfly can be a better indicator of
the lake’s health than testing for polluting chemicals.


“It’s often very expensive and difficult to measure chemicals.
And the ultimate reason we’re interested in chemicals is because of
the organisms. It’s the fish, the birds and the plants we’re concerned
about. So the idea is if the fish and the birds and the plants are
healthy, then the environment must be healthy.”


And a recent federal grant will help scientists look further into the
connection between the health of organisms such as mayflies and the
environmental state of the Great Lakes.


Lake Erie near Port Clinton is not the only example of rebound in the
mayfly population. There’s also been a sharp mayfly population increase
in the waters immediately near Erie, Pennsylvania.


It’s not only good news for the mayflies. It’s good news for fish too.
Some fish feed on the mayfly larvae. So, with more mayflies, there’s
more food for fish.


But, people still have to deal with the annual mayfly onslaught. In
places such as Port Clinton, that means trying to find ways to reduce the
invasion. One thing the city does is turn off streetlights and ask
residents to turn off as many exterior lights as possible in hopes of
attracting fewer bugs during the peak season.


The mayflies that do make it ashore and die are picked up with street
sweepers and composted. In fact, the city got a grant to build the only
licensed landfill in the U.S. for mayflies. There, they compost the
carcasses. Biologist Fred Snyder cooked up the recipe.


“It’s basically sawdust that is mixed about two to one with the
mayflies that are picked up by the street sweepers and brought to
the composting site.”


After several months the mayfly compost is used for gardens and lawns
all over town.


(sound of waves)


Now, Mayor Brown is trying to convince the townspeople to look beyond
the nuisance factor and embrace the mayfly as the standard-bearer for a
cleaner lake.


“We even came up with a theme: Come to Port Clinton where
your dreams may fly.”


It might not offer much comfort to those afflicted by the annual mayfly
invasion… but hey, it’s catchy.


For the Great Lakes Radio Consortium, I’m Paul Cox.

Pitfalls of Population Growth

A recent United Nations report indicates the earth’s population has doubled since 1960. The report says the result of that growth is that humans are altering the planet on an unprecedented scale. The Great Lakes Radio Consortium’s Lester Graham has the details:

Transcript

A recent United Nations report indicates the earth’s population has doubled since 1960. The report says the result of that growth is that humans are altering the planet on an unprecedented scale. The Great Lakes Radio Consortium’s Lester Graham reports.


In its report, the United Nations Population Fund said that with six-point-one billion people on earth, humans are using more resources than ever before. The report indicates rising affluence and consumption along with the growing population are combining to cause extensive environmental damage. The report explains that increasing population itself does not mean increasing damage to the environment. But to be sustainable where the population is growing fastest, Asia and Africa, those regions must have better access to outside resources and technology to better manage their own natural resources, and the political will to use them responsibly. Without the resources and political will, the report indicates that growing populations in undeveloped areas tend to strip the ground clear of natural resources as well as damage the environment and induce famine and disease. For the Great Lakes Radio Consortium, I’m Lester Graham.

Too Much Success for Canada Geese?

  • Canada Geese take flight. Photo by Wyman Meinzer, courtesy of the U.S. Fish & Wildlife Service

Canada Geese are about as common as the green lawns they like to hang out on. But at one time they’d almost disappeared from the region. Thanks to successful wildlife management efforts, the goose is back, and now the question is how best to manage a success story that some say has been too successful. The Great Lakes Radio Consortium’s Dan Gunderson has more:

Transcript

Canada Geese are about as common as the green lawns they like to hang out on. But at one time they’d almost disappeared from the region. Thanks to successful wildlife management efforts, the goose is back, and now the question is how best to manage a success story that some say has been too successful. The Great Lakes Radio Consortium’s Dan Gunderson has more.


In 30 years, the giant Canada goose was on the verge of extinction, but the species has made a comeback that amazes biologists. There were just about enough for a gaggle when humans stepped in to help in the late 1960’s, now numbering in the millions today, the goose is a wildlife management success story that won’t stop.


“We’ve spent millions and millions of dollars to bring the population back.
Now it’s high and it’s eating everything in sight.”


Standing on the edge of a waist high soybean field on his Minnesota farm, Chad Jetvig points to a slough about a quarter mile away. It’s obvious where geese feasted on tender young soybean plants early this summer, leaving large bare spots in the field.


Jetvig says he’s always accepted some crop loss from geese as a part of farming among the prairie potholes of western Minnesota, but he says the amount damage is no longer acceptable.


“I would say in the past two years in particular, but it’s been getting worse each year, we’ve started to see huge areas. Just on this one single farm at two hundred acres that’s over 40 thousand dollars right just out of our pocket. That’s a lot of money.”


And thousands of farmers in the Midwest and Northeast U.S. have similar stories.


This year and last, Chad Jetvig has gotten a permit to shoot geese eating his crops, but he says it’s an exercise in futility.


“We came out here and shot one time and the next time you even drive by they’re gone. They’d even know the color of the pickup. If this one blue pickup we’re using came around, they seen that thing, whoosh, they’re gone.”


Only to return as soon as the coast is clear. Those keen survival instincts are one reason for the goose population explosion. There’s also plentiful food provided by farmers like Chad Jetvig, and lots of wetland nesting sites.


There are an estimated 2 million giant Canada geese in the upper Midwest and Northeast that’s far more than biologists like Minnesota Department of Natural Resources, goose expert, Steve Maxson think is ideal.


“I think a lot of biologists are wondering just how high this population can go. It’s already exceeded their wildest dreams I think and it seems even in the face of intense hunting pressure to be increasing in most areas. I guess the bottom line is we just don’t know how high this population can get.”


Biologists rely on hunting to keep many wildlife populations in check, and the Canada goose harvest has steadily increased along with the population. But Maxson says simply allowing hunters to shoot more birds is not the answer. The birds quickly learn how to avoid hunters. Then there’s the eastern prairie goose that nests in northern Canada and migrates through many states in the region. The eastern prairie goose population is much smaller and less robust than the giant Canada, and biologists fear expanded hunting could destroy the species.


The U-S Fish and Wildlife Service draft environmental impact statement due out this fall will offer several population control alternatives. They range from no action, to targeted hunting in areas where geese are in conflict with humans, to extreme measures such as, destroying nests and eggs. Steve Wilds is the Fish and Wildlife Service regional migratory bird and Chief. He says it’s critical a workable plan come out of this process. If not, he fears future management decisions will be political, not biological.


Wilds says the future of the giant Canada goose is at stake.


“So that they’ll continue to be recognized as a tremendous, beautiful part of our natural landscape and yet not something that’s going to be doing so much damage people start thinking of them as vermin rather than really neat critters.”


The Fish and Wildlife plans to take a public input on its goose management plan early next year. Steve Wild says it will be at least a year before any final decision is made on how the Canada goose populations will be managed in the future. For the Great Lakes Radio Consortium, I’m Dan Gunderson.

Hope for Kirtland’s Warbler

Next month, Kirtland’s Warblers will begin their yearly winter trek. They’ll be flying more than eleven hundred miles from their only known nesting ground in Michigan to their wintering grounds in the Caribbean Islands. The bird was one of the first species to be listed as endangered in 1973. But thanks to several decades worth of forest and wildlife management, the bird’s numbers are increasing. The Great Lakes Radio Consortium’s Mark Brush has more: