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December
18, 2003, 7:30 pm - MEMBER'S PHOTOGRAPHY NIGHT Please bring along your slides,
videos, digitized images etc for an evening of fun and entertainment. Enter
your slides in the all-embracing categories Birds, Birders, Landscapes and Fauna
and Flora. Prizes for best photo in category.
Ornithological Study by Colin Campbell
2003
MEETINGS PROGRAMS
2004
Meetings / Programs
All who have an interest in birds are invited to attend functions of the DVOC.
Meetings are lively proceedings, with a featured speaker or a special forum as well as reports from the various committees, announcements, and general field notes.
All meetings are held at the Academy of Natural Sciences, Philadelphia, PA beginning at 7:30 pm. Directions to the Academy
Archive of Meetings / Programs
Thursday
January 2, 2003, 7:30 pm - "Annual General Meeting and CBCs"
Reports and highlights of the CBCs and Annual General Meeting with Elections,
food and beverages (Wine, Beer, and Soda)"
Thursday
January 16, 2003, 7:30 pm - JIM LOCKYER - "Rose
Tree Hawk Watch - The First Four Years: The Trends and Events of the Hawk
Watch's First Four Years"
This PowerPoint program will illustrate and discuss the raptor migration trends
that have occurred over the first four years at the Rose Tree Park HawkWatch.
Weather influences on migration and the use of radar to track the Broad-winged
Hawk migration will also be discussed, along with some of the not so serious
and fun things that have happened at the Rose Tree Park HawkWatch. The program
promises to be informative, fun, and entertaining.
Minutes of this meeting.
Thursday
February 6, 2003, 7:30 pm - BILL EVANS "Nocturnal
flight calls of migratory birds - the new century ahead"
Bill's presentation will be an overview of his studies on avian nocturnal flight
calls. He will challenge the audience by playing recordings of night flight
calls that can be heard in eastern Pennsylvania, present night flight call data
from more than ten years of monitoring in central New York State, and encourage
everyone to tune into night migration by building their own monitoring station.
Minutes for this meeting.
Thursday
February 20, 2003, 7:30 pm - STEVE HOFFMAN - "The
Important Bird Area Program and the Conservation of Pennsylvania's Birdlife."
Steve Hoffman, PA Audubon's Director of Bird Conservation, will provide an overview
of PA's unique contribution to bird populations in the Western Hemisphere, discuss
long-term trends in populations, and summarize the most serious threats facing
PA's birds. Finally, Steve will provide a historical perspective for the development
of PA's Important Bird Area (IBA) program, along with a discussion of current
activities and future plans for PA's 78 IBA sites.
Minutes of this meeting.
Thursday
March 6, 2003, 7:30 pm - GEORGE ARMISTEAD - "Avian Arctic Adventure: A
season on Alaska's Pribilofs"
Minutes of this meeting.
Thursday
March 20, 2003, 7:30 pm - KEVIN McGOWAN
- "The Uncommon Crow"
Learn about some surprising details of the life of the familiar, but little
known American Crow. Despite being common and widely recognized, the American
Crow has a complicated social and family life that is unknown to most people.
Long-lived birds with extensive long-term family ties, crows have the most human-like
social lives of any American bird. Come find out about some of the complex and
often soap-opera-like
biology that takes place in your own backyard.
Ornithological Studies:- Mike Fritz Saw-whet owl calls
Minutes of this meeting.
Thursday
April 3, 2003, 7:30 pm - DAVID BRINKER - "The Northern Goshawk: a bird
driven by its prey"
Northern Goshawks were extirpated from West Virginia, Maryland and seriously
declined throughout most of Pennsylvania as a result of timber harvesting during
the late 1800's and early 1900's. In the past 50 years goshawk populations have
increased throughout the northeast. They are now returning as a breeding species
to the mountains of the central Appalachians and have recently expanded their
breeding range into the New Jersey Pine Barrens. Northern Goshawks are the top
avian predator in northern forested ecosystems and Mr. Brinker will discuss
the natural history and ecology of goshawks in the east as a result of 30 years
of research in Wisconsin and more recently the central Appalachians.
Ornithological Studies:- Anita Guris " Bluebirds"
Minutes of this meeting.
Thursday
April 17, 2003, 7:30 pm - BOB CURRY - "Tackling a biological mess: progress
in understanding hybridization between Black-capped and Carolina Chickadees"
The geographic ranges of Black-capped and Carolina Chickadees mostly do
not overlap, and the two species can be distinguished in areas where only one
species occurs based on a combination of plumage, morphology, and vocalizations.
However, the chickadees overlap in a narrow band at the southern edge of the
Black-capped range and the northern edge of the Carolina range, extending from
New Jersey to Oklahoma. Chickadees within this contact zone hybridize frequently.
Furthermore, hybrid chickadees survive and breed; birds in the contact zone
display intermediate plumage and morphology; and contact zone birds can give
songs of both species, or give the song of only one species but give the call
of the other species. There's one more twist: the contact zone is shifting northward.
In this presentation, I will summarize our recent and ongoing efforts to understand
the details of hybridization in chickadees through field study in southeastern
Pennsylvania, aided by genetic analysis in the lab.
Minutes of this meeting.
Thursday
May 1, 2003, 7:30 pm - PAUL KERLINGER - "Wind
Power, Electric Power Generation, and Birds: What happens when we turn on
the lights."
Paul Kerlinger will provide an introduction to wind power and its role in
developing renewable energy, a summary of the wind turbine-bird interaction
issue, and perspectives on avian mortality at wind turbines as they relate to
other forms of power generation and other human-induced (including communication
tower) impacts to birds. The talk will summarize the number and types of birds
that are killed by wind turbines, habitat impacts of wind turbines, and what
happens when DVOC members turn on their lights and computers. The electric generation
process, arguably, is having a greater impact on birds and other wildlife than
almost any other industry and birders don't even know it.
Minutes of this meeting.
Thursday
May 15, 2003, 7:30 pm - AMIR BALABAN - "Jerusalem
Bird Observatory: Urban Wildlife in Jerusalem"
The talk will include a presentation about the establishment of the Jerusalem
Bird Observatory, and how it was turned into Israel's first urban wildlife site.
The presentation will review the research and educational projects that the
JBO is involved in and future plans for a network of urban wildlife sites all
over Israel.
Minutes of this meeting.
Thursday
June 5, 2003, 7:30 pm -CHRIS WALTERS - "DVOC May Runs Reports"
Chris Walters will be hosting the resurrection of the May Run's reports, after
an absence of several years. Anyone planning a big day (anywhere and of any
kind) during the month of May is requested to contact Chris to hopefully participate
by handing in your results, so that Chris can compile them, and giving a brief
summary at this meeting (as we do with the CBC's).
Contact: Christopher K. Walters
Contact Information
Minutes of this meeting.
July 3, 7:30 pm, August 7, 7:30 pm - INFORMAL MEETINGS
Sunday
August 24 - DVOC Picnic
Green
Lane Reservoir
Report and Picture
Pictures
September 4, 2003, 7:30 pm - INFORMAL MEETING
September
18, 2003, 7:30 pm- JEFF GORDON - "The Bird Song Grammys," is a
survey of some of the best (and worst) vocal efforts by North American birds,
and a look at some of the evolutionary history and ecological function of bird
songs and calls. This program is designed not so much to teach how to identify
specific bird sounds, but more to impart a broader and deeper appreciation of
the vital role played by sound in the lives of birds.
(This meeting was cancelled due to weather conditions)
October
2, 2003, 7:30 pm- FRANK WINDFELDER - "Ornithological Studies: Separating
the Dowitchers" DVOC member, field trip leader, raconteur and generally
good egg, Frank will use the power of high technology to present his meticulously
researched program on separating Long-billed from Short-billed Dowitcher in
all plumages as well as explore the various races of Short-billed Dowitcher.
The presenter personally guarantees that no one will even think of falling asleep,
since the presentation will be interspersed with some serious humor.
Minutes of this meeting.
October
16, 2003, 7:30 pm - ADRIAN BINNS - "What's in a Name? The Origins of Bird
Names"
From Avocet to Yellowlegs, from accipiter to zenaida
..who
deemed these words to be the correct bird names? What do they mean? Where did
these words come from and why were they chosen? Are they always a perfect fit?
Are they politically correct? We will also take a look at the whimsical, strange
and occasional fantasy connection behind the origins of some bird names.
Ornithological Study - "White-winged" Juncos presented by Rick Mellon
Minutes of this meeting
November
6, 2003 - ANNUAL BANQUET - KENN
KAUFMAN "Birds and the Undiscovered World"

Though the current information explosion might lead us to believe there is little
left to discover, the ever-changing world of birds provides ample evidence to
the contrary. Naturalist, author, birder and conservationist Kenn Kaufman has
pursued birds in remote regions, but he contends that the natural unknown that
they inhabit begins right outside our doors. Learn about the power of personal
observation that connect people with mystery and adventure and help them comprehend
the importance of preserving the natural world. Author of Birds of North America,
Kingbird Highway, The Peterson Guide to Advanced Birding, Lives of North American
Birds and Butterflies of North America, Kaufman is a field editor to Audubon
magazine and regular contributor to every major birding magazine.
Abstract of Proceedings
Pictures
November
20, 2003, 7:30 pm - RICK MELLON "Sinks, Sources and Survival: Geographic
Impacts on Avian Habitats" Two structurally identical habitats can
have very different bird populations just because the size and shape of the
habitats are different. This program examines the importance of habitat size
and shape in habitat preservation, conservation and restoration. It provides
theoretical and practical examples of biogeographic/avian interactions and other
stuff that is fascinating, but not as complex as it sounds.
Ornithological Study - Swifts
presented by Jane Henderson
Minutes of this meeting
December
4, 2003, 7:30 pm - MARK GARLAND - "Searching for Birds and the Meaning
of Life in the Western U.S." Tag along (vicariously) on this search
for birds and other wildlife across the western United States. Stops will be
made in Colorado, Yellowstone, Washington State and Alaska. Mark Garland is
Senior Naturalist for New Jersey Audubon's Cape
May Bird Observatory. He worked out west for the National Park Service
between 1980 and 1984 and had returned often.
Ornithological Study - Gull
Mantle Colors presented by Bert Filemyr
Minutes of this meeting
December
18, 2003, 7:30 pm - MEMBER'S PHOTOGRAPHY NIGHT Please bring along your slides,
videos, digitized images etc for an evening of fun and entertainment. Enter
your slides in the all-embracing categories Birds, Birders, Landscapes and Fauna
and Flora. Prizes for best photo in category.
Ornithological Study - Feather
Iridescence by Colin Campbell
Winners!
Minutes of this Meeting
DVOC Main Page > 2003 Meetings / Programs