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THE BIRDING COMMUNITY E-BULLETIN MAY 2006
This Birding Community E-bulletin is being distributed through the
generous support of Steiner Optics as a service to active and
concerned birders, those dedicated to the joys of birding and the
protection of birds and their habitats. You can access an archive of
our past E-bulletins on the website of the National Wildlife Refuge
Association (NWRA): http://www.refugenet.org/birding/birding5.html
and on the birding pages for Steiner Optics http://www.steiner-birding.com/bulletin.html
RARITY FOCUS
For this section of the E-bulletin we usually highlight a species that
would constitute a rarity found anywhere in the continental US and
Canada. For example, recent past choices for this year have included:
Falcated Duck (OR), Yellow Grosbeak (NM), Pink-footed Goose (CT), and
Piratic Flycatcher (TX).
Since there was no outstanding candidate to fill this role this month,
we have selected a rarity of a different sort - a White-tailed Hawk
that apparently appeared in both Massachusetts and New Jersey in less
than a week. White-tailed Hawk is a species that is locally common in
south coastal Texas, but with only the barest handful of previous
vagrant occurrences in Louisiana, New Mexico, and Arizona. So you can
imagine the shock when Scott Surner and a group of his birding class
students identified a White-tailed Hawk on 22 April in the fields near
the University of Massachusetts Equine and Livestock Center in Hadley,
MA.
With virtually no records of this species in the U.S. north of
Louisiana and the Southwest, speculation on the hawk's provenance
began immediately. Cell phones and e-mail postings were at once
brought to bear, and area birders began salivating over the presence
of such a mega-rarity so far from home in their own backyard. No fewer
than 150 people saw the hawk in the first two days of its visit to
central Massachusetts.
The question was, "How did the bird arrive in
Massachusetts?" The possibilities were more or less clustered
into two camps.
Some birders favored natural vagrancy as the explanation, while others
felt the bird was probably an escape from captivity. Although
White-tailed Hawks hardly migrate in their native range, one
hypothesis suggested that the bird somehow attached itself to a group
of northward migrating Broad-winged Hawks passing over Texas in late
April and simply continued traveling north until it reached New
England. Another possibility is that the hawk had been kept in
captivity (possibly by a falconer) and then later was either released
or escaped, potentially miles from its native Texas.
But the story isn't over. Although the bird was last seen in
Hadley on the morning of 24 April when it took flight and sailed off
in a southwesterly direction, presumably the same bird was
re-discovered and photographed in the Great Swamp National Wildlife
Refuge in northern New Jersey late in the afternoon of 25 April!
Unfortunately, photos obtained in New Jersey were unable to be
positively matched to those of the Massachusetts bird.
The saga isn't finished, however. In mid-morning on 27 April, a
White-tailed Hawk passed a hawk-watching site in Truro on outer Cape
Cod in Massachusetts!
Regrettably neither the New Jersey nor the Cape Cod sighting could be
definitively matched with photographs taken of the bird in Hadley.
While the distances between the observations and the time of the
sightings were significantly separated, the likelihood that there was
more than one White-tailed Hawk in the Northeast in three days is so
remote that this scenario probably bests serves as a reminder of how
remarkable the flight capabilities of certain raptors are as much as
anything else. As for the true origin of the bird, we may never know.
More details and photos from Massachusetts can be found at: http://www.massbird.org/sightings/index.htm
KUDOS FOR IVORY-BILLED BIRDERS
In the March-April 2006 issue of REFUGE UPDATE, the official bulletin
for the Refuge System, the managers of Cache River NWR and White River
NWR praised birder restraint when it came to the Ivory-billed
Woodpecker. Dennis Widner, Cache River NWR manager, was initially
expecting chaos and a flood of birders hoping to add the Ivory-billed
Woodpecker to their life lists after the reports of the species in
Arkansas last April. Instead, he was pleasantly surprised when birders
seemed to assume responsibility for protecting the bird. He said that
messages on birding Web sites and listserves "have discouraged
birders from rushing to the refuge."
Likewise, Larry Mallard, manager of nearby White River NWR, says that
news of the woodpecker has given both refuges international visibility
among birders and other non-consumptive visitors.
As was mentioned last month, Ivory-billed seekers are encouraged to
examine the USFWS-sponsored site for more information: http://www.fws.gov/arkansas-es/BigWoodsBirding/index.html
GETTING AROUND THE IVORY-BILLED DEBATE
Recently, there has been increasing debate over the authenticity of
reports of Ivory-billed Woodpeckers in Arkansas. We reported on the
controversy in the March E-bulletin: http://www.refugenet.org/birding/marSBC06.html#TOC04
and http://www.steiner-birding.com/bulletin/mar06.html
Rather than paraphrase the controversy, we recommend that readers of
the E-bulletin read an article in EOS, the transactions of the
American Geophysical Union, for 21 March 2006 (Volume 87, No. 12).
This article, "Decadal Drought Effects on Endangered Woodpecker
Habitat," by D. W. Stahle and six colleagues, focuses on
questions pertaining to habitat-type and the status of candidate,
non-commercial cypress-tupelo forest remaining in the Southeast.
In general, the article raises viable questions for Ivory-billed
hopefuls: What makes these forests look like they do? When do these
stands of trees begin or end their existence? How can we predict what
will be good Ivory-billed habitat elsewhere in the future? How can we
manage the forests so that there will be suitable habitat in the
future?
These are difficult questions, and all worthy of pursuit, especially
since they add "urgency to the identification and protection of
other ancient swamp forests throughout the bottomlands of the
South."
The questions also present opportunities for bird enthusiasts to work
with specialists from the forestry community in sharing information
and in supporting each other's research. By working jointly these
groups may improve the chances for increasing funding for vital
research and expanded acquisition and habitat preservation in the
future.
GREAT WHITE HERON: GOOD TAXA? BAD NEWS!
When a bird species gets "lumped," there is often a tendency
to neglect it and not pay too much attention to its biology or its
population status. Such may be the case for the "Great White
Heron," a bird of southernmost Florida that was considered a
separate species until the 1970s, when it was determined to be a white
color morph of the Great Blue Heron.
Although there are indications that the Great White Heron may indeed
be a "good" species, that's not what is most pressing at
the moment.
Recent surveys in the lower Florida Keys suggest that the Great White
Heron may be experiencing its greatest drop in numbers on record. For
example, surveys of traditional nesting sites at Great White Heron NWR
and Key West NWR have not been encouraging. In the mid-1980s there
were approximately 250 nests at 19 rookeries, but a survey in February
of this year located only 83 active nests at 18 rookeries. Other
systematic surveys have also shown a pronounced downward trend over
the past six years.
It is also feared that similar downward trends on National Park
Service properties (e.g., Everglades National Park, Florida Bay) may
also be taking place, even despite a year or two of recent increases.
Clearly, a range wide survey is warranted. Tropical storms and
hurricanes may be a factor in the decline, but there could be other
causes related to the health of Florida Bay and its surrounding
waters.
For a summary of the Great White Heron's past status in Florida
see the Florida Breeding Bird Atlas pages on the site of the Florida
Fish and Wildlife Conservation Commission. Though somewhat dated, it
is still informative: http://myfwc.com/bba/gwhe.htm
GUNNISON SAGE-GROUSE NOT LISTED
In April, federal officials decided not to list the Gunnison
Sage-Grouse as either Endangered or Threatened under the Endangered
Species Act. The U.S. Fish and Wildlife Service (USFWS) said that the
species' numbers have remained stable or actually increased over
the past several years.
An estimated 4,500 to 5,000 Gunnison Sage-Grouse were present in
southwestern Colorado and near the Colorado-Utah border last year,
with an estimated 3,000 birds in 2004. Research suggests that most of
the decline for the species, once found throughout the Four Corners
area in Colorado, Arizona, New Mexico, and Arizona, occurred with the
loss of sagebrush habitat prior to 1958.
The Colorado Division of Wildlife is currently enlisting landowners to
help protect the species and the agency has applied to the federal
government to enter into conservation agreements aimed at giving
landowners greater assurance about the use of their land in exchange
for protecting the sage-grouse.
In the meantime, the Bureau of Land Management (BLM) plans to continue
upholding its limited protection of the Gunnison Sage-Grouse, despite
the fact the bird was determined to be healthy enough to remain off
the Endangered Species list. More than half of the sage-grouse's
habitat is on land managed by the BLM, according to the USFWS. The BLM
has required special drilling stipulations in habitat occupied by the
Gunnison Sage-Grouse and has deferred thousands of acres of known
habitat from oil and gas lease sales. There is, however, debate over
whether this protection is adequate. The BLM is also working on a
strategy with the state of Colorado and other partners to come up with
a plan to manage habitat currently occupied by sage-grouse. For now,
this protection will not change, but some biologists continue to worry
about whether the sage-grouse may not slowly disappear.
Clait E. Braun, a retired Colorado Division of Wildlife employee who
was in charge of sage-grouse research from 1973-1999 says that once
the initial "buzz" over the listing decision dies down,
things might return to normal. "I think people will proceed
cautiously in the short term, but they'll go back to what
they've always done... Why pinch someone economically when the
species is no longer even a candidate for the [endangered species]
list?"
HUMMINGBIRD MEMORY
Could it be that hummingbirds have qualities of "episodic
memory" - the ability to recall things that happened in the past,
or where and when they happened?
Researchers working in the Canadian Rockies suggest that Rufous
Hummingbirds may literally be able to keep track of when a particular
flower has replenished its nectar so that it might be worth revisiting
at a later time. T Andrew Hurly and his colleagues from the University
of Lethbridge in Alberta, claim as much in the March issue of CURRENT
BIOLOGY.
To test hummingbird memory, the researchers set out arrays of
artificial flowers made from syringe tips surrounded by cardboard
discs. They refilled half the syringes 10 minutes after a male drank
the sugar solution, and the other half after 20 minutes. Even when
keeping track of eight fake flowers, hummingbirds tended to visit the
refilled flowers at appropriate intervals-about 10 minutes for quickly
refilled flowers and 20 minutes for the slower refills.
This is evidence that at least some hummingbirds have capabilities
similar to episodic memory. Scrub-jays and Acorn Woodpeckers, for
example, have similarly been proven to have the ability to remember
where and when they hid stores of food.
IBA NEWS
As a new feature in our monthly E-bulletin, we plan to include brief
highlights from various Important Bird Area (IBA) Programs around the
country. The IBA Program is an effort coordinated in the United States
by the National Audubon Society.
This month, we draw attention to the significant annual staging
concentrations of American Golden-Plovers found during spring
migration in west-central Indiana, specifically in Benton County.
One-day counts of 5,000-6,000 golden-plovers in untilled soybean
fields in this area clearly underscore the importance of Benton County
as an IBA in Indiana.
For more information about the ongoing IBA program in the United
States, see: http://www.audubon.org/bird/iba/
HORICON CROSSWINDS
For some months now, we have been following the wind power situation
near Horicon Marsh in Wisconsin. The controversy has revolved around
the placement of wind-turbines as close as two miles to the marsh, an
area which serves as a National Wildlife Refuge, a state Wildlife
Management Area, and a location that that has been recognized as a
Ramsar Site of international significance. Critics of the wind farm
have called for at least a four-mile setback for the turbines. We
summarized the issue in our October 2005 E-bulletin: http://www.refugenet.org/birding/octSBC05.html#TOC04
In late March, Dodge County Circuit Court Judge John Storck affirmed
the Wisconsin Public Service Commission's order approving
construction of the wind facility. The judge also rejected a request
to initiate a three-year study to examine the possible impact of wind
turbines on migratory birds in the project area.
Fortunately, appealing the court's decision is a viable
possibility for the Horicon Marsh System Advocates, leaders in the
effort to stop attempts to locate the wind farm in close proximity to
the marsh. Recently, however, an additional wrinkle has been
encountered.
The Federal Aviation Administration will not approve the wind power
project yet, due to concerns about how the wind turbines might
interfere with Air Force use of regional radar. Apparently, the wind
facility is within line-of-sight of radar that the Air Force uses to
monitor planes across the country. It is thought that the
turbines' moving blades can register as "false targets."
This could have an "adverse physical or electromagnetic
interference effect upon navigable airspace or on air navigation
facilities." Therefore, "it is in the best interest of the
Air Force mission to delay the wind farm development until a
comprehensive analysis can be completed."
Such an analysis may be finished in June.
NANTUCKET SOUND WIND POWER
Meanwhile, off the Massachusetts coast another wind power issue is
blowing strong. Currently, not a single wind power turbine exists off
the coast of the U.S. Only Europe, most notably Denmark and the UK,
has experienced significant offshore wind power development in recent
years.
Over the past several years, considerable attention has been focused
on a proposed wind farm project in Nantucket Sound. Cape Wind Energy
has a plan to locate America's first offshore wind facility in
Nantucket Sound off the southern coast of Cape Cod. The project calls
for the erection of 130 wind turbines spread over 25 square miles of
Horseshoe Shoal in Nantucket Sound. If fully implemented, the project
is slated to provide the equivalent of three-fourths of the
electricity consumed on Cape Cod and the nearby islands of Nantucket
and Martha's Vineyard.
Questions persist over this project.
The project will set a precedent for future offshore wind projects in
North America. (For example, there are projects on the drawing board
off Hull, MA, Corpus Christi, TX, and Long Island, NY.) The Nantucket
situation, therefore, deserves careful review. In this context, the
independent Massachusetts Audubon Society has taken a leadership role
in analyzing the potential environmental impact of this project, with
particular attention being directed at possible risks to birds that
live in or fly through the area proposed for the wind farm.
Mass Audubon has challenged Cape Wind and other appropriate permitting
agencies to embrace comprehensive and rigorous monitoring and
mitigation that would hopefully reduce the risk to birds and other
wildlife. Mass Audubon has gone on record as saying, "If these
conditions are adopted, and remaining significant data gaps are filled
with a finding of no significant threat to living resources, Mass
Audubon will support the project, what is expected to be the largest,
clean, renewable-energy project in the Northeast." In regard to
birds and other wildlife, Mass Audubon goes on to point out that this
"does not mean zero impact on those resources because the
production of energy always entails some level of environmental
impact."
It is clear that much still needs to be learned and evaluated about
the potential impact of such a massive project might have on terns and
other seabirds, sea ducks, shorebirds, and nocturnal migrating
songbirds.
Readers are encouraged to study the balanced and thoughtful Mass
Audubon statement pertaining to the wind farm at: http://www.massaudubon.org/news/index.php?id=317&type=news
NEOTROPICAL MIGRANT LANDBIRD MAP
Under the leadership of Peter Blancher of the Canadian Wildlife
Service, an international team of Partners in Flight colleagues has
put together a fascinating new document. This document and tool is
called, "Making Connections for Bird Conservation: Linking
States, Provinces & Territories to Important Wintering and
Breeding Grounds."
In this document, maps are utilized to summarize migratory connections
between locations at opposite ends of migration. This is a fine way to
explore partnerships and mechanisms that could further conservation
action connecting regions. The document is composed of several parts
-a text portion; maps of migratory connections from each state,
province and territory; and related appendices. To see the document,
check:
http://www.partnersinflight.org/pubs/ts/04-Connections/default.HTM
PABLO CANEVARI AWARD ANNOUNCED
The winner of the Pablo Canevari Memorial Award for 2006 is Brazilian
shorebird biologist and researcher, Inês de Lima Serrano, of
CEMAVE (Centro Nacional de Pesquisa para Conservação das
Aves Silvestres).
The Award, established by the Manomet Center for Conservation
Sciences, gives recognition to Latin American biologists and
conservationists who reflect the values and contributions of the late
Pablo Canevari in their work.
Inês de Lima Serrano and CEMAVE have been considered the first
to develop research and conservation projects for migratory shorebirds
in South America. Inês has taught over 20 bird-banding courses
from 1988 to 2003 for Brazilians and other South American researchers.
In this role, her influence on South American bird study has been
immense, as many researchers began their banding work through these
courses. Beginning in 1997, Inês has been a key participant in
the ongoing cooperative and hemispheric study of Red Knots.
In addition to these shorebird efforts, Inês's energy and
commitment to conservation have been reflected in a variety of other
projects. These include monitoring colonial birds, including the
Jabiru in the Pantanal, Mato Grosso do Sul; studies of the risks,
problems and solutions for bird-aircraft strikes at some of
Brazil's most important international airports, including Rio de
Janeiro, Salvador, and Manaus; and the development of instructional
materials about migratory birds for children. She has also been a
tireless supporter of volunteers and new researchers.
Pablo Canevari, for whom the award was named, was the first Director
of the Western Hemisphere Shorebird Reserve Network (WHSRN), as well
as a scientist, skilled illustrator, and committed conservationist. In
March of 2000, Pablo died suddenly of cancer.
To read about previous Canevari Award winners, go to:
http://www.manomet.org/WHSRN/Pablo%20Canevari/pablocanevariaward.htm#recipients
FARALLON WEBSITE/BLOG
The Farallon Islands off the coast of central California were
established as a National Wildlife Refuge in 1909. The islands and
their surrounding ocean environment have also been recognized by the
United Nations and governmental agencies as a site of hemispheric
biological importance (designated as an International Biosphere
Reserve, a National Marine Sanctuary, and a State Ecological Reserve).
The Point Reyes Bird Observatory (PRBO) has been working at the
Farallon Islands in cooperation with the USFWS since 1968. Since
December 2005 the PRBO project has also maintained a lively Farallon
Islands web log. The web log is an attempt to get information about
the Farallon project out to the public. The blog contains news about
research and island living, pictures, and video from the field. Recent
content focused on Elephant Seals, but since mid-April the blog has
been filled with seabird information that is updated directly from the
island about once every two weeks: To see this information, check:www.losfarallones.blogspot.com
SCAUP TRACKER
Last month we mentioned the status of Greater and Lesser Scaup, and
reminded readers that, among other things, the 2005 estimate for the
two species is 46% below the goal of 6.3 million scaup set in the
North American Waterfowl Management Plan (NAWMP): http://www.refugenet.org/birding/aprSBC06.html#TOC05
or http://www.steiner-birding.com/bulletin/april06.html
Early this spring, the Long Point Waterfowl and Wetlands Research Fund
(LPWWRF) captured and tagged 18 Lesser Scaup and 2 Greater Scaup from
the Great Lakes in order to track their seasonal movements across
North America. By now all these tagged ducks have departed the lakes
and are back in the U.S./Canadian Prairie Pothole Region. At least one
bird traveled swiftly from Lake Erie, past Lake Superior and on into
northwestern Ontario in less than three days. To follow the movements
of these marked birds, see: http://www.bsc-eoc.org/lpbo/lpwwrfscauptrack.html#
You will have to click on "Scaup Tracker" for the latest
tracking information. Satellite locations are updated daily, so be
sure to check regularly.
NAWCA REPORT AVAILABLE
Last month we wrote about the Migratory Bird Conservation Commission
(MBCC) and its function in acquiring refuge-associated habitat through
the Migratory Bird Hunting and Conservation ["Duck"] Stamp.
The MBCC also approves the distribution of NAWCA (North American
Wetlands Conservation Act) funding. The most recent of the
programmatic biennial reports required by the Act is now available
online in PDF format at: http://library.fws.gov/Pubs9/nawca.progrpt.04-05.pdf.
This 48-page report contains summary information on U.S., Canadian,
and Mexican projects funded under the Act, grouped by country and
arrayed by state or province, for Fiscal Years 2004 and 2005. The
categorical information provided for each project includes the number
of acres protected, restored, or enhanced; the type and duration of
the conservation mechanism used; and the amount of grant and partner
dollars involved.
CALL FOR NWR ACQUISITION
In testimony before the Senate Appropriations Subcommittee on Interior
and related agencies, on 28 April, Evan Hirsche, president of the
National Wildlife Refuge Association, called for a $100-million
investment in Refuge System land acquisition in FY 07.
He encouraged the Subcommittee to allocate "sufficient funding to
purchase high-priority lands and conservation easements." With a
Refuge System land acquisition backlog estimated at $4 billion,
approximately 15.4 million acres remain to be acquired within approved
refuge boundaries. Willing sellers across the country are standing by
to work with the USFWS, but the Service has neither the funding nor
the resources to handle these land acquisition opportunities.
Hirsche stressed that "vital refuge buffer areas and corridors
may be lost, jeopardizing the very integrity of refuges. While a full
suite of conservation strategies should be employed in working with
private landowners, in cases where fee title acquisition is preferred
by the landowner and the refuge has identified it as a top priority,
the USFWS should acquire the land." Even with $100 million,
Hirsche stressed, it would still take at least 40 years to acquire
priority lands under the Service's Land Acquisition Priority
System (LAPS).
In the essential area of National Wildlife Refuge System annual
operations and maintenance (O&M), Hirsche called for a funding
level of $415 million in FY 07 - an increase of $33 million over the
President's request.
The full NWRA testimony can be found here:
http://www.refugenet.org/new-pdf-files/FY07_SenateIA_Testimony.pdf
TWO BOOKS TO CONSIDER
We usually don't review books here for fear that our E-bulletin
would become far too long. Two books, however, both published last
year and both worth mentioning recently captured our attention.
LAST CHILD IN THE WOODS, by Richard Louv (2005, Algonquin Books) is
about what the author calls a "nature-deficit disorder"
among our youth. "Our children," he writes, "are the
first generation to be raised without meaningful contact with the
natural world." Best of all, Louv not only eloquently describes
the problem, but also makes some observations on how it is being
addressed today, creatively and in various ways. It's a valuable
read.
LOOKING FOR MR. GILBERT, by John Hanson Mitchell (2005, Shoemaker
& Hoard) is subtitled "the re-imagined life of an African
American." While doing research on another book, Mitchell was
astonished to find 2,000 old glass plate photographs ascribed to
William Brewster, a primary founder of the AOU, but actually taken by
Brewster's "man servant," Robert Gilbert. Mitchell
reconstructs the life of this experienced and accomplished natural
historian and birder, and the indispensable right-hand man for
Brewster. Sometimes the trail grows cold, but what Mitchell discovers
tells us much about the times of Brewster and Gilbert, the depth of
our pastime, and the quest for discovery.
You can access an archive of past E-bulletins on the National Wildlife
Refuge Association (NWRA) website. http://www.refugenet.org/birding/birding5.html
and on the birding pages for our thoughtful corporate sponsor, Steiner
Optics http://www.steiner-birding.com/bulletin.html
If you wish to distribute all or parts of any of the E-bulletins, we
simply request that you mention the source of any material used.
(Include the URL for the E-bulletin archives, if possible.) Most
importantly if you have any friends or co-workers who want to get onto
the E-bulletin mailing list, have them contact either:
Wayne R. Petersen
Director, Massachusetts Important Bird Areas (IBA) Program
Mass Audubon
718/534-2046
wpetersen@massaudubon.org
OR
Paul J. Baicich
410/992-9736
paul.baicich@verizon.net
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