Tag: heron

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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Room for Wilderness in the Suburbs?

  • Lilies like these reside in the Reinstein Nature Preserve. Environmentalists worry about natural life in the preserve as the state of New York considers opening it up without restrictions.

Imagine a suburban, backyard wilderness where 200 year-old trees still stand. That’s exactly what you’ll find at the 300 acre Reinstein Nature Preserve. It meanders right through the heart of a bustling suburb. The preserve has been limited to small groups led by a nature guide. But there’s a new plan to give unrestricted access. Some environmentalists worry that would ruin the preserve. The Great Lakes Radio Consortium’s Joyce Kryszak takes us to the woods – and to the debate:

Transcript

Imagine a suburban, backyard wilderness where 200 year-old trees still stand.
That’s exactly what you’ll find at the 300 acre Reinstein Nature preserve.
It meanders right through the heart of a bustling suburb. The preserve has been limited
to small groups led by a nature guide. But there’s a new plan to give unrestricted access.
Some environmentalists worry that would ruin the preserve. The Great Lakes Radio Consortium’s
Joyce Kryszak takes us to the woods – and to the debate:


A Great Blue Heron perches lazily in the distance above an expanse of pink water lilies.
At first Bob Reinstein doesn’t see the bird.


“I should’ve brought my field glasses.”


But then its giant wings spread wide, laboring to clear the water in this serene Monet-like setting.


“The lilies were a gift from two different environmental organizations…”


The man and the majestic heron both seem oblivious to the rush of cars and people just
beyond the edge of the woods. This is the Reinstein Nature Preserve. It’s framed on all sides
by a sprawling suburb of houses and shopping plazas in Western New York. Like his parents before
him, Bob Reinstein says he’s risked his life for nearly sixty years defending this scene; he guards it against trespassers – and sometimes trespassers with guns.


“Their lives were threatened several times, in fact, mine was also. I was unarmed at the time,
but he had pointed his shotgun at me and threatened to shoot. Realizing it was pointing at my face,
I stopped following him.”


But Reinstein never stopped trying to protect the nature preserve his father created half a century ago.
By the time he died in 1984, the elder Reinstein had dug nine ponds, planted thousands of trees,
rare ferns and flowers to compliment the ancient scene. The younger Reinstein says it’s like a
living museum.


“Where else can schoolchildren walk back through history a hundred and fifty years and see
samples of what existed then, that are still here today?”


Reinstein says his father bequeathed the preserve to the state to keep it from being trampled.
He stipulated that it must stay forever wild. People could visit, but only for educational
purposes. And only with a trained nature guide. That could all be changing. A proposal by the
State Department of Environmental Conservation would give the public unrestricted access.


Jane Wiercioch lives in the nearby suburb and loves visiting her backyard wilderness. But today
Weirchioch is handing out petitions here. She hopes to stop the DEC from opening the preserve. She
says it would leave the woods vulnerable.


“I know I came in here the other day for a walk around that lily loop with my great granddaughters
and, of course, they were chasing frogs. So, I’m with them, I’m yelling at them, ‘don’t do anything.’ But can you imagine having people just coming in here and doing what they want?”


State conservation officials say bringing in more people is the whole point. Meaghan Boice-Green
is a spokesperson for the New York State Department of Environmental Conservation. She says all
other department-run properties are open to the public. Boice-Green says unrestricted access would be good for both the public and for the agency.


“We’re not talking about property that hasn’t touched by the hand of man, and in order for us
to obtain the funding to do the habitat maintenance that’s going to be necessary to maintain
this manmade habitat, we have to provide some public access. We’re not going to be able to
access funds to support a property that the public isn’t allowed to access.”


But the state has never had any trouble finding money to maintain the preserve before.
And Boice-Green couldn’t offer specifics about any extra funding.


Terry Boyle has volunteered as a guide at the preserve for eight years. But he agrees the
preserve should be unrestricted. Boyle says visitors can’t have a truly natural experience
if someone’s watching their every move.


“A lot of those people who do want to come in, they want to take photographs, they want to sit
down and reflect for a little bit about what they’re looking at, and that kind of stuff. So,
they can’t go at their own leisurely pace with tour guides, because we have to push them through a little bit
faster.”


But the head of a local environmental group sees it differently. Larry Watson says if the
preserve is opened, there won’t be anything left to look at anyway. He believes the state is
just tired of policing the woods. But Watson says it was Dr. Reinstein’s wish that the
preserve be kept wild. And he should know. As a young boy sixty years ago, Watson spent many
long hours in the woods, helping Reinstein plant the saplings that now tower overhead.


“If they turn this into what they want to, it will be nothing more than a state park.
And we’d rather see it kept as an individual showpiece and a place New York state can be quite
proud of and show the rest of the country what can be done in the way of environmental
conservation.”


The New York State Department of Environmental Conservation says it hasn’t made a final
decision. It will consider the wishes of those who want access to the preserve to remain
restricted. But many people are also demanding it be opened. Ultimately, the state says
it will likely let people come to the preserve whenever they want – and trust them
to be good caretakers.


For the Great Lakes Radio Consortium, I’m Joyce Kryszak.

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Small Wetlands Drowning in Development

  • Small wetlands such as the one pictured above often dry up during the summer. These 'ephemeral wetlands' are home to all kinds of frogs, salamanders, reptiles and aquatic life that depend on this specific kind of habitat for their survival. Photo by Lester Graham.

Biologists are becoming concerned about the disappearance of a habitat for wildlife that can be found in rural areas, in sprawling suburbs, and even in big cities. The Environmental Protection Agency is trying to get city planners, farmers, and developers to stop draining small marshy areas that biologists call ephemeral wetlands. The EPA says in the rush to save big areas of wetlands these small temporary wet spots have been overlooked at the expense of some unique wildlife. The Great Lakes Radio Consortium’s Lester Graham has more:

Transcript

Biologists are becoming concerned about the disappearance of a habitat for wildlife that can be found in rural areas, in sprawling suburbs, and even in big cities. The Environmental Protection Agency is trying to get city planners, farmers, and developers to stop draining small marshy areas that biologists call ephemeral wetlands. The EPA says in the rush to save big areas of wetlands these small temporary wet spots have been overlooked at the expense of some unique wildlife. The Great Lakes Radio Consortium’s Lester Graham has more:

(Frogs sound)

There’s still just a bit of ice along the edges of this little pool, but it’s a warm day, the ice will soon melt, and the frogs sound as if they’re rejoicing. In the coming weeks, this shallow little pond will become a chorus of different kinds of frogs and host a dance of mating salamanders. Many kinds of amphibians and reptiles are drawn to wet spots like this one to mate and reproduce. And. there’s a bit of a rush to their reproductive activities. More than likely by middle or late summer, this little pool will be all dried up. Actually, that’s good because it means fish can’t survive here, fish that would eat the young of many of these species. So a lot of these frogs and salamanders and other creepy-crawly things do really well here while its wet.

Ed Hammer is a biologist with the Environmental Protection Agency. He says these temporary, or ephemeral, wetlands are usually pretty small… most under two acres in size…some so small you could jump across them. But they’re really important to aquatic life such as fairy shrimp and clam shrimp, which can survive, and even need dry periods. And certain species of frogs and other amphibians who use the wetlands for breeding.

(Frogs fade out)

“They’re extremely productive. We have some of these smaller wetlands in our area in the Chicago region that in a quarter acre of size can produce hundreds and hundreds of salamanders and leopard frogs in a good year when the water holds out. They really depend on those habitats being there every few years at the very least.”

And Hammer says the productivity of the ephemeral wetlands helps other species.

“Salamanders and frogs are fed upon by a multitude of other organisms like turtles and snakes and on up the food chain and then, you know, owls will feed on them. Raccoons and skunks and fox and all up the food chain they’ll be fed on. So they’re an extremely important food source.”

The temporary wetlands are also important to many migrating birds such as pintail ducks and little green herons. Paul Zedler is a professor of environmental studies and scientist at the University of Wisconsin arboretum.

“Imagine you’re a bird, a shore bird, looking for habitat in which to forage. Then ephemeral wetlands, while they’re there, can be an excellent place for resting and feeding.”

Zedler says the ephemeral wetlands are amazing to him because of the wet then dry cycle to which so many animals have adapted.

“It’s like instant ecosystem. Like, add water and you get an ecosystem. People who, once it’s pointed out to them, invariably think it’s pretty darn neat.”

But a lot of times, the people who own the ephemeral wetlands don’t realize that area that gets swampy in wet years is a thriving habitat. Ephemeral wetlands are often drained to plant crops, or bulldozed deeper to build storm water retention basins for housing developments, or the surrounding woodlands are cut down eliminating the habitat where many of the frogs and salamanders live the rest of the year.

They’ve disappeared so quickly that some species that depend on ephemeral wetlands are in danger of disappearing too. Gary Casper is with the Milwaukee Public Museum. He’s been studying a certain turtle called Blanding’s turtle to see why its numbers have dwindled so much.

“Blandings turtles look kind of like those old German helmets from World War II and they have a really bright yellow chin and throat with a real long neck. They’re a threatened species in Wisconsin and threatened or endangered in several other states.”

Casper has been watching Blanding’s turtles to see what makes them tick, where they like to live and eat.

“And after looking at the data from seven years of radio tracking, it’s quite clear that they strongly prefer these seasonal, isolated wetlands probably because they provide much more food for them.”

And so they join a host of other critters such as gray tree frogs, marbled salamanders, fishing spiders, wood ducks and others who heavily depend on the ephemeral wetlands.

The EPA is publishing pamphlets and holding seminars to teach state and local officials and those folks interested in preserving wildlife habitat…hoping they’ll spread the word about the value of the seasonal ponds, or mud puddles so that private landowners will keep them around.

For the Great Lakes Radio Consortium, this is Lester Graham.

Related Links

  • Download a brochure on ephemeral wetlands by the Conservation Foundation. Acrobat Reader required to open file.