Feds, farmers create habitats for migrating birds

July 30th, 2010
By RAMIT PLUSHNICK-MASTI and JOHN FLESHER, Associated Press Writers Ramit Plushnick-masti And John Flesher, Associated Press Writers Thu Jul 29, 5:56 pm ET

MAMOU, La. – Water gurgling from a well is flooding Craig Gautreaux’s rice and crawfish fields, turning the farm into a wetland for migratory birds whose usual Gulf of Mexico wintering grounds are threatened by the oil spill.

Across eight states, farmers such as Gautreaux are inundating fallow fields to provide an alternative for some of the tens of millions of ducks, geese and shorebirds that are beginning to make their way south on a flyway that stretches as far north as Alaska and Iceland.

“Hopefully, we can help,” said Gautreaux, who has dedicated 762 acres about 90 miles inland from the Gulf to the project under a three-year, $132,441 contract that likely will cover his costs but provide little if any profit. “I want to keep the birds around.”

Biologists fear the birds will arrive to spend winter at the Gulf barrier islands, shorelines and marshes only to find these habitats fouled and their food supply depleted.

Government officials hope to have 150,000 acres of manmade wetlands ready by Aug. 15, although they do not know how many birds will use it.

The federal government hasn’t funded anything like this $20 million project before, but farmers and scientists are hopeful the program in the five Gulf states and Arkansas, Georgia and Missouri could work. They note that Gulf-bound birds often stop anyway at their farms, where rice and crawfish fields are already flooded for parts of each season.

“There’s a sense of urgency here,” said Kevin Norton, who heads the U.S. Department of Agriculture’s conservation programs in Louisiana. If the oil causes major die-offs, he said, “that will ripple through the populations for years to come.”

The program is so popular that Texas and Louisiana exhausted their initial funding within weeks and lobbied for more. Texas has now received nearly $6 million under the program and hopes to have all its contracts funded by Aug. 1.

Yet the scheme isn’t likely to be a windfall for the farmers. It’s designed to compensate them for pumping and holding the water, which can be expensive, without generating a profit.

The amount farmers are paid will depend on how much land they devote and the steps they take to make it suitable for birds.

Flooding will cost between $43 and $200 per acre, depending on factors such as water value in a particular area and the condition of the land, said Russell Castro, a biologist with the federal conservation service in Temple, Texas. Some farmers will have to build small levees or dikes.

“Anyone who buys a farm and runs it themselves, I guess you don’t do it to get rich,” said Grantt Guillory, 37, who raises crawfish and soybeans in southern Louisiana’s Atchafalaya River watershed. “You get into it because you’re somewhat of a steward to the environment. I care about these birds and I’m afraid the oil spill is going to devastate some of these species.”

His grant application hasn’t been accepted yet, but he’s turning about 235 marshy acres into wetlands anyway, keeping the area submerged under six to 10 inches of water for a couple of months longer than usual.

Farmers typically rotate which fields they plant, leaving some fallow each year, and the ones being flooded for the birds are generally those out-of-use plots. In some cases, the extra flooding might take place before planting or after harvest.

Some farmers might choose to provide several inches of water and mudflats from July through October, an ideal habitat for shorebirds such as sandpipers and dowitchers. Shallow water on moist soils in August and September could attract early migrating waterfowl such as the blue-winged teal.

Deeper water would be needed from October through March for diving ducks, such as redheads and canvasbacks.

About 15 million ducks and geese migrate annually to Texas, Mississippi, Louisiana and Alabama, said Mike Brasher, a biologist with the Gulf Coast Joint Venture, a partnership among government, nonprofits and landowners for bird habitat preservation. When shorebirds are added, he said, the total could reach 50 million.

Their habitat has been diminishing for years because of sinking, erosion, hurricanes and pollution, said John Pitre, a wildlife biologist with the USDA’s Natural Resources Conservation Service. The oil spill just makes things worse.

Agencies involved with the new program “had wanted to do something like this before, but never had the funding,” Pitre said.

Many birds that spend cold-weather months in the Gulf region had already flown north ahead of the spill, which was triggered by an April 20 rig explosion that killed 11 workers. But scientists say the danger will be waiting when they return — some as early as this month_ even if the leak has been plugged.

Norton acknowledged that some species might not seek out the alternative habitat — especially those that instinctively return annually to the same places.

However, he said, if they make even a quick stopover in the newly developed habitat before continuing to the Gulf, they may go back after finding their former haunts polluted.

The piping plover, a shorebird on the federal endangered species list, spends winters nibbling tiny invertebrates on sandy Southern beaches and probably won’t be attracted to the new habitats at first, said biologist Francie Cuthbert of the University of Minnesota. But if the oil kills off their usual food supply, some might fly inland.

Other birds, such as the common loon of the Great Lakes region, prefer open-water habitat and probably will head directly for the Gulf and Atlantic coasts, said Joe Kaplan, a biologist in Michigan’s Upper Peninsula.

James Gentz, a rice farmer in Winnie, Texas on the Gulf coast, has signed two contracts for about $84,000 to keep 720 of his 1,200 acres flooded through March 31.

Keeping fields that would normally lie fallow this year flooded through the winter will be time-consuming, but Gentz believes he will turn a profit while helping the birds survive.

“For generations, they’ve been following a migratory pattern. Hopefully, if they get down south, they’ll come back to where we’re trying to help them,” Gentz said.

2010 NABA Count Results

July 16th, 2010

Here are the count results from our July 3 Butterfly Count, we saw 499 individuals of 30 species.

Pipevine Swallowtail 2

Black Swallowtail 2

Giant Swallowtail 1

Eastern Tiger Swallowtail 2

Checkered White 1

Cloudless Sulphur 11

Orange-barred Sulphur 1

Little Yellow 155

Sleepy Orange 8

Gray Hairstreak 6

Gulf Fritillary 30

Variegated Fritillary 5

Silvery Checkerspot 86

Pearl Crescent 10

Question Mark 5

American Lady 2

Common Buckeye 17

Red-spotted Purple 4

Hackberry Emperor 5

Tawny Emperor 3

Southern Cloudywing 2

Northern  Cloudywing 17

Horace’s Duskywing 13

Common Checkered-Skipper 4

Clouded Skipper 70

Fiery Skipper 2

Southern Broken-Dash 1

Dun Skipper 27

Celia’s Roadside-Skipper 4

Bell’s Roadside-Skipper 3

Ocola Skipper 1

Fort Hood Trip

June 3rd, 2010

Here is a list of birds seen on our May field trip to Fort Hood. Again many thanks go to Gil Eckrich for leading our trip and finding us Golden-cheeked Warblers and Black-capped Vireos.

Location:     Fort Hood-Bell County
Observation date:     5/22/10
Number of species:     40

Great Blue Heron     1
Great Egret     6
Black Vulture     6
Turkey Vulture     9
Red-shouldered Hawk     1
Red-tailed Hawk     1
Killdeer     1
Rock Pigeon     4
Mourning Dove     14
Yellow-billed Cuckoo     2
Greater Roadrunner     2
Chimney Swift     1
Black-chinned Hummingbird     2
Red-bellied Woodpecker     3
Downy Woodpecker     2
Eastern Wood-Pewee     1
Western Kingbird     1
Eastern Kingbird     6
Scissor-tailed Flycatcher     5
White-eyed Vireo     10
Bell’s Vireo     2
Black-capped Vireo     3
Red-eyed Vireo     2
American Crow     8
Cliff Swallow     36
Carolina Chickadee     9
Black-crested Titmouse     4
Carolina Wren     7
Bewick’s Wren     3
Blue-gray Gnatcatcher     7
Eastern Bluebird     1
Northern Mockingbird     4
Golden-cheeked Warbler     3
Yellow-throated Warbler     1
Yellow-breasted Chat     3
Lark Sparrow     4
Northern Cardinal     18
Indigo Bunting     4
Painted Bunting     15
Dickcissel     11

Audubon Important Bird Areas at Risk from the Gulf Oil Spill

May 19th, 2010

Many Gulf of Mexico Important Bird Areas designated by Audubon and its partners for their essential habitat value to bird species lie within potentially affected areas. They include National Seashore sites, National Wildlife Refuges and Wildlife Management Areas. For more information and maps go to:

http://www.audubon.org/news/pressroom/gos/iba.html

Chimney Swift Tower

April 14th, 2010

Read all about our Chimney Swift Tower grant from the Audubon Foundation of Texas, and visit our Chimney Swift Tower at Lick Creek Park, near the entrance.

Grant – http://audubonfoundationtexas.org/RioBrazos2009grant.html

Lick Creek Park – http://www.cstx.gov/Index.aspx?page=538

Chubby Birds Get There Faster

February 22nd, 2010

Heavy Migratory Birds Take Shorter Breaks and Reach Their Breeding Grounds Faster

ScienceDaily (Feb. 19, 2010) — Small migratory birds, like the garden warbler, must make stopovers on their journeys to their breeding grounds. When they have crossed extensive ecological barriers, such as deserts or oceans, they must land to replenish their fat reserves. A researcher from the Max Planck Institute for Ornithology in Seewiesen and a team of Italian colleagues measured the duration of the stopovers made by garden warblers on an island off the Italian coast. There they observed that fat birds usually move on the night of their arrival, while thin birds interrupt their journey for an average of almost two days.

While pockets of flab accumulated over the winter months may be a source of frustration for some, it can be a cause of joy for others: “Fat garden warblers can make shorter stops to replenish their fat reserves on the taxing annual journey to their breeding grounds,” reports Wolfgang Goymann of the Max Planck Institute for Ornithology in Seewiesen. The research results have shown that the duration of a bird’s stopover is not only influenced by environmental factors, such as wind and weather conditions, or a genetically-programmed internal urge: subcutaneous fat stores are the main factor behind the varying durations of the stopovers made during avian migration.

The researchers fitted ten fat birds and ten thin birds that landed on the Italian island of Ventotene in the morning on route to the north with temporary adhesive radio transmitters. They then monitored, at regular intervals, whether the signal emitted by the transmitters could still be heard on the island. Nine out of the ten fat birds flew on the same night; the thin birds, however, remained on the island for an average duration of 40 hours before resuming their journey.

“We assume that the majority of the birds arrived on the island the morning we caught them,” says Wolfgang Goymann. “However, even if this were not the case, our data clearly revealed that fat garden warblers only waited until nightfall on the same day to move on. As opposed to this, the thin birds had to wait until they had accumulated sufficient fat reserves for the next leg of their journey.”

The data demonstrates the importance of ecologically-intact resting grounds: The birds can only replenish their energy reserves quickly and move on to their breeding grounds swiftly and unfailingly if they can rest in areas with sufficient supplies of insects, nectar and pollen. Those that arrive early at the breeding ground can secure the best nesting sites.



Story Source:

Adapted from materials provided by Max-Planck-Gesellschaft.


Journal Reference:

  1. Wolfgang Goymann, Fernando Spina, Andrea Ferri and Leonida Fusani. Body fat influences departure from stopover sites in migratory birds: evidence from whole-island telemetry. Biology Letters, 2010; DOI: 10.1098/rsbl.2009.1028

“World’s least known bird” found breeding in Afghanistan

January 19th, 2010

NEW YORK (Reuters Life!) – Researchers have found in Afghanistan the first known breeding area of the large-billed reed warbler, which was dubbed in 2007 as “the world’s least known bird species.”

Researchers for the Wildlife Conservation Society and Sweden’s Gothenburg University said they had found the breeding area in the remote and rugged Wakhan Corridor of north-eastern Afghanistan that has escaped the worst effects of war.

They used field observations, museum specimens, DNA sequencing, and the first known audio recording of the species to find the birds and verified the discovery by capturing and releasing almost 20 birds, the largest number ever recorded.

A preliminary paper on the finding appears in BirdingASIA, describing the discovery in Afghanistan as “a watershed moment” in the study of this bird.

The first specimen of the large-billed reed warbler was discovered in India in 1867 but the second find was not until 2006 in Thailand.

“Practically nothing is known about this species, so this discovery of the breeding area represents a flood of new information on the large-billed reed warbler,” said Colin Poole of WCS’s Asia Program, in a statement.

“This new knowledge of the bird also indicates that the Wakhan Corridor still holds biological secrets and is critically important for future conservation efforts in Afghanistan.”

The find came after Robert Timmins from the WCS was conducting a survey of bird communities in the area.

The Wakhan Corridor has escaped the worst effects of the long years of war suffered elsewhere in Afghanistan since the December 1979 invasion by the Soviet Union. The corridor, populated primarily by Wakhi farmers and yurt-dwelling Kyrghyz herders, is also home to snow leopards and wild Marco Polo sheep.

Timmins heard a distinctive song coming from a small, olive-brown bird with a long bill which he taped and later discovered to be a large-billed reed warbler.

The following summer WCS researchers returned to the same area and used a recording of the song to bring out others and catch almost 20 birds for examination.

The WCS said it is currently the only organization conducting scientific conservation studies in Afghanistan, the first such efforts in over 30 years, and it has contributed to a number of conservation initiatives in tandem with the Afghan government.

It helped produce Afghanistan’s first list of protected species, an action that has led to a ban on hunting snow leopards, wolves, brown bears, and other species.

(Reporting by Belinda Goldsmith, Editing by Miral Fahmy)