The Great Blue Heron

  • An island in the Upper Mississippi, not far from downtown Minneapolis, is home to many Great Blue Herons.(Photo courtesy of Stephanie Hemphill)

Some people say robins are the first sign of spring. But there’s another bird that makes a dramatic entry in northern states. The Great Blue Heron soars in to make a nest… and guard it:

Transcript

Some people say robins are the first sign of spring. But there’s another bird that makes a dramatic entry in northern states. The Great Blue Heron soars in to make a nest… and guard it:

On an island in the Upper Mississippi River, a stand of cottonwood trees is silhouetted against a gray sky. The bare branches are festooned with big nests, made of twigs and branches. Next to the nests, like sentinels at the castle gate, stand Great Blue Herons. These birds are four feet tall. More than a hundred of them are claiming their domain in these trees, just upriver from downtown Minneapolis. When one takes off and glides away, its six-foot wing span dwarfs the ducks and songbirds sharing the island.

It’s hard to tell the males from the females because they’re the same blue and gray. Birder Sharon Stiteler is leading me on a tour of this rookery.

“The males arrive first, and they work out who’s going to take which nest. Where you see one bird standing up, that is most likely a male. He’s hanging out there because the other males who are still waiting to attract a female could come by and steal sticks out of his nest to make his nest look better.”

On some nests, you can see females already sitting on pale blue eggs the size of small mangoes. But Stiteler says herons are not always good parents.

“If the chick falls out of the nest and lands on the ground, that chick is toast: the parents will not continue feeding it. And oftentimes you’ll see turkey vultures hanging out at rookeries, and they’re waiting for the young to fall and starve, and then they’ll have a whole bunch of food.”

But at least on this island, there won’t be many predators like coyotes or foxes.

These birds were once threatened by humans. Their cousins the egrets were hunted for their beautiful white feathers, and both suffered disastrous population loss until the pesticide DDT was banned.

Now you can see them in streams and lakes all over. They breed in Canada and the upper midwest. They spend their winters wherever they can find food. Herons literally stalk their prey.

“They have a lot of patience, and they just stare at one spot for long time, and then they jab down and grab the fish. Their beak is shaped like a pair of super-sharp chopsticks. Sometimes they catch a huge fish and they have to juggle it around, especially if they have it perpendicular with their beak, they have to jostle it around, and the fish is wiggling, and eventually they get it just right so it’s straight in line with the bill, and you can watch this huge thing slide down that long slender neck.”

Sharon Stiteler is a part-time naturalist with the National Park Service, and she writes a blog called bird-chick-dot-com.

Today the herons are pretty quiet. But Stiteler has a Blackberry loaded with their sounds, including the prehistoric squawk they make when they’re startled.

And Stiteler says it can sound really strange when the young are clattering for food.

After the young are raised — at least the ones that survive — the herons will stay here on the river, until it freezes over and they can’t fish anymore. Stiteler says the birds decamp all at once.

“One day we have Great Blue Herons, and the next day they’re gone, and they migrate at night.”

They tuck back their long necks when they fly, forming an S-shape and hiding their true length.

Stiteler says the recovery of Great Blue Herons, along with pelicans, eagles, and other birds near the top of the food chain is a sign of a healthier ecosystem.

For The Environment Report, I’m Stephanie Hemphill.

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Parrots in Brooklyn

  • The parrots build nests around transformers for warmth. But the nests can catch fire and cause people to lose their electricity. (Photo by Steve Baldwin)

Think ‘city bird,’ and you probably
think ‘pigeon.’ But in some cities,
another kind of bird is thriving –
the bright green monk parrot. Some
people love them; some people hate
them. Samara Freemark
went to Brooklyn to find them:

Transcript

Think ‘city bird,’ and you probably
think ‘pigeon.’ But in some cities,
another kind of bird is thriving –
the bright green monk parrot. Some
people love them; some people hate
them. Samara Freemark
went to Brooklyn to find them:

No one really knows just how the parrots got to Brooklyn. But the best guess is they were shipped here from Argentina in the 1960s. They were supposed to go to pet stores. But somewhere along the way someone opened a shipping crate and the parrots escaped. Now there are thousands of the birds in colonies across Brooklyn.

“They’ve reinvented themselves as a north American species.”

That’s Steve Baldwin. He’s a tall, white haired native New Yorker and, I think it’s fair to say, a parrot fanatic.

“It has probably something to do with the peculiar person I am. I think I probably regarded myself as an outsider for most of my life. And so the idea you could have these creatures who really don’t belong here, somehow make the transition and now they belong here. I just found that a personally inspiring story.”

Steve started a website about the parrots. He leads monthly parrot tours. He even wrote a song about the parrots.

“I got some news for you baby and it might not be so good. There’s an avian invader in the neighborhood. Well, they’re little green parrots from the Argentine…”

I met up with Steve as he was starting one of his tours of the parrot colony at Brooklyn College.

“I’ve been following these little green guys for about 5 years. One of the things that endears it is that it’s very smart. In fact the monk parakeet is the second best talking parrot. Next to the African gray, the monk parrot is number two. Are there any particularly Brooklyn sounds that they… well, occasionally you’ll find one that’s imitating a car alarm.”

We head over to the college’s soccer field.

“Sometimes when we come out here we’re lucky and the parrots are down on the ground, eating the grass. But I don’t see them today. So we’re just going to keep moving. Uh! Here they come! There they go! We got a good group.”

There are probably 50 parrots living in the Brooklyn College colony. But it’s one of many colonies across New York. There are about 450 parrot nests in the city. That’s according to numbers from Con Edison, New York City’s energy provider.

Con Edison tracks the nests because for the company, the parrots are actually a pretty big headache. A couple of days after the tour I met up with Chris Olert. He’s Con Edison’s point man for dealing with all problems parrot-related.

“What happens is, these birds build nests around our transformers, because of the warmth. And these are not little hold in your hand nests. Some are three or 4 or 5 feet tall, and 3 or 4 or 5 ft wide. They’re huge. And they do catch on fire. And those fires have resulted in customers losing their electricity.”

Con Edison has been trying to figure out what to do about the parrots for years now. They tried knocking the nests down – but the parrots came back and rebuilt. Last year they even installed some mechanical owls with rotating heads to frighten the parrots away.

“The owl was – some of our people who work in the overhead in Queens spotted these owls in a hardware store and put them up on the equipment, but the parrots pretty much laughed in their faces.”

Nothing has really worked. Olert says Con Edison’s numbers show the New York parrot population growing by 10% every year.

At that rate, in a couple of decades they could be as ubiquitous – and as hated – as that other New York bird – the pigeon.

For The Environment Report, I’m Samara Freemark.

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Population Control for Cormorants

  • Biologists Jim Farquhar and Mike Smith inspect the cormorant nests in the treetops. (Photo by Karen Kelly)

The pesticide DDT almost wiped
out the double-crested cormorant.
Now, the bird is thriving, and it’s
blamed for devouring fish in lakes,
rivers, and fish farms in many parts
of the country. Karen Kelly reports
on the struggle to share resources
with this unpopular bird:

Transcript

The pesticide DDT almost wiped
out the double-crested cormorant.
Now, the bird is thriving, and it’s
blamed for devouring fish in lakes,
rivers, and fish farms in many parts
of the country. Karen Kelly reports
on the struggle to share resources
with this unpopular bird:

(sound of clanking and birds)

Mike Smith eases a boat into the shallow water just off Little Murphy Island. It’s a tiny patch of sand and trees in the middle of the St. Lawrence River. It straddles the New York border with Canada.

Smith is a wildlife technician with New York’s department of environmental conservation. He specializes in cormorant management. That means he knocks down nests, breaks eggs, and – very occasionally – shoots them.

Before he even jumps off the boat, he starts counting the birds that are poking out of nests in the treetops.

“I see a few. I’m looking at their nests. We tried to have a zero percent successful reproduction rate.”

Smith counts maybe ten nests. They started with 150 or so in the spring.

There are tens of thousands of these birds. They spend their summers in the north. And in the winter, they go south where they raid fish farms.

Biologists estimate each bird eats a pound of fish a day. That can make a dent in the local fish population. The birds also strip trees of their leaves to create nests. And their guano ends up killing the trees’ root systems. That ends up driving out other animals that need vegetation.

Some people feel the birds should be eradicated. One group of anglers was even arrested for killing hundreds of them on Lake Ontario.

There are others, like the group Cormorant Defenders International. They feel they should be protected.

It’s up to biologists like Jim Farquhar of New York’s Department of Environmental Conservation to find the balance between human needs and cormorants.

Farquhar: “We have needs too, as people.”

Karen: “And we’re competing with them.”

Farquhar: “And we’re competing with them in some cases. Hopefully, if we can inject good science, we make good decisions as a result.”

The biologists’ biggest effort has been on Lake Ontario. They’ve been destroying nests there — and killing some adults – for ten years. Farquhar says they’re finally seeing results.

They’ve reduced the cormorant population on the lake by about two-thirds, and the fishing’s improved.

Now, the biologists are trying to have the same success on the St. Lawrence River. But they’ve only seen a 13% decrease in the number of cormorant nests and they’ve been doing it for four years.

Part of the challenge is that most of the birds live on Canadian soil where management is left to the landowner.

Local anglers like Steve Sharland of Ogdensburg, New York, are frustrated with the slow progress.

“They should eliminate them. They’re not a Northern New York bird and what they’re doing to our fisheries is a sin.”

That’s a common misconception. Actually, the cormorant is native to the region but few people have seen them in such large numbers.

Sharland says some people are so frustrated, they’ve been shooting the birds illegally. But Jim Farquhar believes those are isolated incidents.

“Mike just mentioned that we’ve got some black-crowned night herons nesting out here. It’s another species we’re concerned about, and one we’ve been trying to actively protect from the cormorants. So that’s a good sign.”

A good sign. But it’s another species trying to live on this small patch of land. And the biologists’ balancing act has become even more delicate.

For The Environment Report, I’m Karen Kelly

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Building Penguin Beach Homes

  • The penguins' natural shelter (their own dung) is being removed from the landscape for fertilizer. So, conservationists are supplying penguins with artificial homes in which to nest. (Photo by Frank Olivier)

Along with lions and elephants, Southern Africa is home to a species of penguin. But the African penguin population is dwindling – and scientists are trying to turn things around for the bird. Ann Dornfeld reports:

Transcript

Along with lions and elephants, Southern Africa is home to a species of penguin. But the African penguin population is dwindling – and scientists are trying to turn things around for the bird. Ann Dornfeld reports:

Dyer Island sits just off the coast of the Western Cape of South Africa. It’s tiny, and pretty much consists of two things. Rocks. And birds.

Along with Cape cormorants, Hartlaub’s gulls and swift terns, Dyer Island is the nesting ground for hundreds of African penguins. Although they’re half the size of the Emperor penguins from that movie you might have seen, the species act a lot alike – waddling, awkwardly hopping, and squawking at each other over territory disputes. But today, these African penguins aren’t doing much of anything. That’s not them you hear. They’re mostly just standing still, trying to catch a breeze in the 90-degree heat.

“If you have a look here, you get an idea of just the heat stress of the birds. See this bird over here who’s just sort of standing, gasping, that’s an indication of heat stress.”

Lauren Waller monitors the penguin colony for Cape Nature. That’s the provincial conservation department. Waller says penguins used to find protection from the heat by burrowing into centuries’ worth of bird guano. That allowed them to keep cool, and lay their eggs out of predators’ reach. But in the 19th and 20th centuries, people dug out the guano between the rocks along the Southern Africa coast and sold it as fertilizer.

“And now what you’ve got if you have a look around the island is just – it’s rock, and the penguins can’t burrow into that. And so it now forces them to breed on the surface.”

When penguins make their nests out in the open, kelp gulls can snatch their eggs and chicks. And because penguins breed during African summers, the heat can be overwhelming. Parents often leave the nest just to cool off at sea, and their eggs or chicks die. It will take decades for the guano to build back up.

Scientists are trying to help the penguins out. They’re building nests for them. Waller says Dyer Island is the main testing ground.

“The nests are made out of fiberglass mold and they sort of mimic natural burrows that the bird would make in the ground. They’re kind of like a really small igloo shape, and big enough that you can fit two adult birds inside and their chicks as well.”

The nests are covered with rocks to prevent a greenhouse effect inside the igloos. Waller says they’re experimenting with different materials and nest arrays to see whether the penguins prefer their igloos in a cul-de-sac pattern, or a secluded ocean view. Some nests never catch on, but others have become prime real estate.

“Here you can see we have a colony of 15 nests, and already nine of them are occupied and it’s not their peak breeding yet. So this specific colony is looking really, really good.”

We peek inside one of the plastic igloos where a mother is guarding two fuzzy brown chicks.

“She’s turning her head from side to side.”

“Yeah, it’s a kind of aggressive, stay-away kind of behavior. But if you look behind her you can see the little heads sticking out!”

Waller says as successful as the artificial nests have been, commercial overfishing of sardines and anchovies also affects chick survival. At one well-protected nest a few yards away, she finds an abandoned egg and a dead chick. She says it may be that the parents couldn’t find enough fish.

“It is hard. Knowing their numbers are just going down every year. And you become quite desperate to do something so that these birds don’t have these breeding failures.”

The South African government has banned fishing around one island with penguin colonies to see whether it makes a difference in the birds’ survival rates. Waller says she’s hopeful that now is the turning point for African penguins.

For the Environment Report, I’m Ann Dornfeld.

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Osprey Nest Near Fish Hatchery

  • The osprey is a bird that scoops fish out of rivers and lakes (Photo courtesy of the National Parks Service)

Ospreys are birds of prey that eat fish. Todd Melby tells us about a pair of osprey that tried to nest near a fish hatchery:

Transcript

Ospreys are birds of prey that eat fish. Todd Melby tells us
about a pair of osprey that tried to nest near a fish hatchery:

The osprey is a raptor that scoops fish out of rivers and lakes.

So when a pair of osprey decided to mate near a DNR fish hatchery south of
Minneapolis, biologists were delighted and worried.

Ospreys rarely nest so far south. So that was good news. What worried biologists was
whether the birds would eat the fish. Biologists decided these fish were too small.

Another worry was the ospreys’ choice of a nesting site. In this case, the birds picked an
electrical power pole.

Lisa Gelvin-Innvaer is with the Minnesota DNR.

“They like high areas. Places that have room for them to put their nest. Transmission
poles often provide that.”

Biologists decided that was a bad idea, so they’ve built a tall nesting platform near the
power pole.

“We’re hopeful with the new nesting platform, that they’ll come back and attempt to nest
again.”

For The Environment Report, I’m Todd Melby.

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Woody the Woodpecker: Save My Home!

  • Chet Meyers surveys the Cedar Creek Ecosystem Science Reserve for Red-headed Woodpeckers. He's heading up a study to identify the bird's preferred habitat, and to encourage landowners to let dead and dying trees stand, as woodpecker homes. (Photo by Stephanie Hemphill)

Red-headed woodpeckers used to
be just about everywhere east of the Rocky
Mountains. But these days the number of
red-headed woodpeckers is about half of
what it was fifty years ago. Stephanie
Hemphill reports volunteers
are working on a new project to get people
to help red-headed woodpeckers. They’re
encouraging landowners to let dead or dying
trees stand rather than cut them down:

Transcript

Red-headed woodpeckers used to
be just about everywhere east of the Rocky
Mountains. But these days the number of
red-headed woodpeckers is about half of
what it was fifty years ago. Stephanie
Hemphill reports volunteers
are working on a new project to get people
to help red-headed woodpeckers. They’re
encouraging landowners to let dead or dying
trees stand rather than cut them down:

You can’t miss Red-headed Woodpeckers. They have long beaks,
bright red heads and snowy white breasts. And if you go to the right
place, you can find a lot of them.

“Somebody told me that there was Red-headed Woodpeckers up
here, so I walked five minutes, and there was a Red-headed
Woodpecker, and it flew into a hole in a tree, and I says, ‘wow, this is
easy.’”

Lance Nelson first visited the Cedar Creek Ecosystem Science
Reserve about a year ago.

“And then I came up this year and found 8 nests. But the young
make a lot of chattering, so you can usually tell where the nest is.”

Today they’re not hammering on trees – the sound most of us
associate with woodpeckers – but they’re doing plenty of chattering.

This reserve in southern Minnesota looks a lot like how much of the
Midwest used to look.

There are clumps of big oak trees here, separated by open areas of
native grasses, shrubs and wildflowers. The biologists call it an oak
savannah.

And there are Red-headed Woodpeckers everywhere – about fifty of
them on this 500-acre patch of ground.

“There’s a red-headed, and he’s got a baby with him. God, they’re
beautiful. They are so beautiful.”

That’s Chet Meyers. After a career as a college professor, he’s now
in charge of an effort to make more places where Red-headed
Woodpeckers can build their nests and raise their young.

If they can figure out exactly what the woodpeckers like so much
about this place, maybe they can come close to reproducing the
same conditions other places.

Chet Meyers is marking every tree where the woodpeckers have
nested.

“See these two trees to the left, go to the right-most one, it forks, and
there’s a broken-off snag up there, looks like a ‘Y’. That’s where the
babies were sticking their head out a couple weeks ago. It was really
cute.”

Once the trees are marked, the group will catalog exact descriptions
of each tree. They’re hoping to come up with a profile of the perfect
home for Red-headed Woodpeckers.

“And we’re going to measure the diameter of the tree, how high the
nest cavity is, the species of the tree, is it alive or is it dead, so we
can get some data on what seems to be the preferred habitat.”

Once they’re pretty sure they know what the woodpeckers like, they’ll
reach out to land owners. They’ll to try to get them to leave dead and
dying trees standing.

That could work on old abandoned farms, where there are trees and
open spaces. Or in cemeteries. Or around golf courses.

“If our theory – see, this is all theory – if our theory is correct, the golf
course replicates an oak savannah and there should be birds there.
So, that’s what we’re hoping.”

And Meyers says helping woodpeckers means helping other wildlife
too.

“The woodpecker is called a primary nester, it digs the cavity. But
flying squirrels, mice, snakes, bluebirds, tree swallows – there are lots
of other animals that are secondary nesters. They can’t drill the hole.
But they live there. So what we’re trying to do is preserve the habitat
so the woodpeckers drill the hole and when they leave, something
else will come in and live in it.”

The researchers think if you have dead or dying tree, that could be a
home for a Red-headed Woodpecker. But usually homeowners are
worried the tree could fall and damage something, Meyers says you
can cut off the top and some of the bigger branches and leave the
rest of the tree standing. They think the red-headed woodpecker will
be just as happy.

For The Environment Report, I’m Stephanie Hemphill.

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Nature’s Little Architects

  • The nest of a Swainsons warbler. (Photo by Judith McMillan)

Some of the world’s most intricate
architecture is not always constructed by
humans. Sometimes the most skilled architectural
wonders are designed by nature. Gretchen Cuda reports on an exhibit that celebrates
birds’ nests:

Transcript

Some of the world’s most intricate
architecture is not always constructed by
humans. Sometimes the most skilled architectural
wonders are designed by nature. Gretchen Cuda reports on an exhibit that celebrates
birds’ nests:

Judith McMillan didn’t find her inspiration in tree branches. She found it in the
basement of the museum where she works. She was rummaging through drawers
there when she came across a hundred-year-old collection of bird nests.

“This Museum must have 10 cabinets full of bird’s nests.”

She was fascinated and immediately knew she had a new subject for her art.

McMillan is a photographer who has been volunteering at the Cleveland Museum of
Natural history for 20 years. In her latest exhibit, titled “Nesting”, she captures some
of natures most inspiring, and often overlooked architecture – the nests of birds.

(sound of exhibit crowd)

“I was looking for nests that were different from each other so that you could see that
these birds were little architects. And there were so many different kinds of materials
used – and then the eggs could be so different. Some with little tiny speckles, some
with different colors some with little calligraphic streaks around them, so it was that
variety that I wanted to capture.”

All the photographs are in black and white – because she really wanted people to
concentrate on the architecture without being seduced by the color. She’s fascinated
by the way different birds chose very specific materials to work with – everything
from marsh reeds, grape vine, or little knotty twigs – like this one.

“This is a vermillion flycatcher – it’s almost like it’s made of pick up sticks in the way
their pushed together.”

And to emphasize the diversity of structures birds can create she shows me an
Orioles nest that’s five inches deep and formerly hung like a basket from a tree.

“I actually had to shine a flashlight down in it when I was taking the photograph in
order to get the eggs to show up.”

Most of the nests and eggs were collected around the turn of the 20th century by
amateur naturalists who never thought twice about disturbing the natural wildlife.

But the practice eventually fell out of fashion as people became more
environmentally conscious and large nest and egg collections were often turned over
to museums – explains Andy Jones the museum’s ornithologist.

“People whose grandfathers were dealing with eggs as a hobby, well their
grandfathers are passing away and so they contact their local university or natural
history museum, and say, ‘hey do you want these?’”

Those specimens were originally collected just because they were pretty. These
days, they’re still beautiful, but they also serve a scientific purpose. Scientists can
look at things such as the thickness of the shells, or the type and number of birds
found in a specific location and tell a lot about the birds. They can see where birds
used to live and how far their territories reached. They can even tell if a bird that’s
extinct now once lived in an area.

Judith McMillan hopes her photographs will not only show how beautiful the birds’
handiwork was, but will also inspire people to do something about saving the birds
that are still here.

“I didn’t understand until I started using a camera myself how you can isolate
something and make people look at it differently–And I hope through my
photographs I’m getting people to take a fresh look at things. It’s hard to have an
appreciation of nature unless you really look at it and start to really care about it.”

Recent surveys have found that many songbirds are disappearing. If people don’t
start caring, those photographs and drawers full of nests might become the only
reminders of many more species that go extinct.

(song of a Cardinal)

For The Environment Report, I’m Gretchen Cuda.

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Whooping Cranes’ Poor Parenting

  • Whooping cranes have been abandoning their nests, and eggs, in search of food (Photo courtesy of the US Fish and Wildlife Service)

The experiment to create a migrating flock
of whooping cranes in the Eastern US is having a
parenting problem. Chuck Quirmbach reports:

Transcript

The experiment to create a migrating flock
of whooping cranes in the Eastern US is having a
parenting problem. Chuck Quirmbach reports:

About 70 whooping cranes now migrate between the Southeast US and the Midwest.
Wildlife experts have been hoping that more pairs of the birds would start hatching eggs
and raising chicks in the wild.

This spring, at their northern home in Wisconsin, several female cranes did lay eggs and
sat on the nests during cold weather. But when it warmed up, the adult birds abandoned
their nests to look for food.

George Archibald is co-founder of the International Crane Foundation.

“If there is a food stress, when it becomes warmer their drive to feed may increase much
more than when it’s cold.”

Some of the crane eggs were saved and hatched out by wildlife centers.

For The Environment Report, I’m Chuck Quirmbach.

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Eggs Layed in Whooper Recovery Effort

A whooping crane experiment in the Eastern U-S has had its first hatch of eggs from migrating birds. But humans had to help. The GLRC’s Chuck Quirmbach reports:

Transcript

A whooping crane experiment in the Eastern U.S has had its first hatch
of eggs from migrating birds. But humans had to help. The GLRC’s
Chuck Quirmbach reports:


Several migrating cranes laid eggs this spring at the Necedah National
Wildlife Refuge in Wisconsin, but some eggs broke. So, wildlife
officials scooped up two intact eggs and eventually sent them to a
wildlife center in Maryland. The eggs recently hatched. Wildlife
agencies say it’s a huge step for the effort to create a migrating and
reproducing flock of whoopers in the Eastern U.S.


Joan Garland of the International Crane Foundation says that’s even
though the chicks were not hatched in the wild.


“We did sort of have to help these eggs out a little bit. We did remove
them from the nests and raise them in incubators, but at least they were
produced and part of their life was there in the wild in the nests at
Necedah.”


Garland says the two chicks will probably be sent back to the wildlife
refuge this summer, and there, they’ll be taught to fly south.


For the GLRC I’m Chuck Quirmbach.

Related Links

Experts Hopeful for Whooper Eggs

Dozens of whooping cranes are heading north this spring, as an experiment continues to develop a migrating flock of the birds in the Eastern U.S. Wildlife experts hope this’ll be the year the effort will produce its first successful hatch of a crane egg. The GLRC’s Chuck Quirmbach reports:

Transcript

Dozens of whooping cranes are heading north this spring, as an
experiment continues to develop a migrating flock of the birds in the
Eastern U.S. Wildlife experts hope this’ll be the year the effort will
produce its first successful hatch of a crane egg. The GLRC’s Chuck
Quirmbach reports:

About sixty of the endangered whooping cranes migrate between the
southeastern U.S. and northern states like Wisconsin and Michigan.
Last summer, for the first time, a few cranes paired off and produced
eggs, but the cranes didn’t stay near their nests and predators destroyed
the eggs.


Rachel Levin of the U.S. Fish and Wildlife Service says this year she’s
more optimistic the cranes will reproduce.


“We have cranes this year that are going to be five years old. Whooping
cranes reach sexual maturity between three and five years old. So, we
are hoping this year that we have cranes that will produce eggs and that are
maybe mature enough this year to stay with those eggs and do their
parental duty.”


One goal of the crane reintroduction project has been to have 25 adult
breeding pairs. For now the project will continue to add to the flock by
bringing in crane chicks from Maryland.


For the GLRC, I’m Chuck Quirmbach.

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