At just about every meeting we have a short presentation
on current birding topics such as problem IDs, birding techniques (field
sound recording and photography, etc.), and birding locations. These interesting
presentations will last about ten minutes. Details of these presentations
are put up on the DVOC webpage as a permanent online resource for everyone.
Members are encouraged to participate in these sessions with their own
additional comments and wisdom on the topics.
| Past Presentations |
| Note: These presentations are copyrighted.
All rights are reserved. Contact the individual authors for usage
permission. |
| 2014 |
|
| |
12/6 - Art
McMorris - Pennsylvania's
Peregrine Falcons: 2014 Season Summary |
| 2013 |
|
| |
12/5 - Art
McMorris - Pennsylvania's
Peregrine Falcons: 2013 Season Summary |
| 2012 |
|
| |
12/20 "Falcons
and Parrots: Almost Songbirds?" - Art
McMorris |
| |
4/19 - 2011 Billings Big Year - Mike
Fritz |
| |
2/16 - "Snowy
Owls: Age, Sex and Plumage" - Art
McMorris |
| 2011 |
|
| |
12/15 "Christmas Bird Count Fun"
- Rick Mellon |
| |
5/5 -"When
a Butcherbird Isn't a Shrike: An Introduction to the Cracticinae of
Australia" - Steve Kacir
Click
Here for the song of the Pied Butcherbird singing at dawn. |
| |
4/21 - "Revisiting
'The Bare Truth About Birding Martha's Vineyard'" - Hart
Rufe |
| |
4/7 - "A
DVOC Quiz" - Frank
Windfelder |
| |
3/17 - “Looking for Ted Parker”
- Gregg Gorton |
| |
3/3 - "Your
Backyard Is For Birds" - Edie
Parnum |
| |
2/17 - "Owls
Create New Lawn Decor" - Barbara
Granger |
| |
2/3 - Colin
Campbell - "What
will be the next new bird in your state?" |
| |
1/20 - "A Conservation Conversation"
- Phil Witmer |
| 2010 |
|
| |
12/16 "All time high counts for
Xmas Count birds in Area" - Rick Mellon |
| |
12/2 - “Vocal
Differences between the Recent Splits Announced by AOU.”
- Don Jones |
| |
11/4- "The Secret Lives of Saw-Whets
- Debbie Beer |
| |
10/21 - "Wing
Beat and Flight Patterns Useful in Avian ID" - John
Tramontano |
| |
10/7 - "Ring-billed
Gull Plumages" - Frank
Windfelder |
| |
9/9 - "ID of Wigeon" - Frank
Windfelder |
| |
"Aberrant
White Winged Gull" - Steve
Kacir - 4/15 |
| |
"Nesting Strategies of the Little
Guys with the Big Guys" - Chris Walters (no web version) - 4/1 |
| |
"In
the Field: Bonaparte's Gulls and Black-headed Gulls" - Bert
Filemyr - 3/18 |
| |
"Eye-arcs
and Orbital Rings" - Frank
Windfelder - 3/4 |
| |
"Identification
of Scaup" - Frank Windfelder
- 2/4 |
| 2009 |
|
| |
•
"Ornithology
Primer: Some Correlates of Wing Structure and Migration.” -
Connie Goldman - 12/17 |
| |
•
"A Fly
Fisherman's Observations About Some Diving Ducks" - Howard Eskin
- 12/3 |
| |
•
"Mystery Hawk at my Bird Bath" -
Sue Killeen - 10/15 |
| |
•
Misidentified Birds - Frank
Windfelder - 10/1 |
| |
•
Tree
Swallow Attack - Frank Windfelder
- 5/7 |
| |
•
Glass:
Reducing Bird Strikes - Phil
Witmer - 4/16 |
| |
•
Diving
Bird Quiz - Steve
Kacir - 4/2 |
| |
•
Flight
Identification: Wilson's Snipe vs American Woodcock - Chris
Walters - 3/19 |
| |
•
2008 Peregrine Falcon nesting season in Pennsylvania. - Art
McMorris - 2/19 |
| |
•
Distribution of Eastern Screech Owl Morphs- Adrian
Binns - 2/5 |
| |
•
Ice Build
up on Birds: An Observation - Adrian
Binns - 1/22 |
| |
• Eider
ID - Bert Filemyr - 1/8 |
| 2008 |
|
| |
• Giving
Up The Heavens - Steve Kacir
- 10/16 |
| |
• Refuges
by the Numbers - Debbie Beer
- 10/3 |
| |
• Recent
AOU Checklist Changes - Art
McMorris - 9/18 |
| |
• World
Series/May Run reports - 6/5 |
| |
• DVOC
World Series team report - Bert
Filemyr - 5/15 |
| |
• Swamp
Sparrows - A Mystery Unfolds - Sarah Warner - 5/1 |
| |
Changes
in Spring Arrival Dates for Three Bird Species in Lower Merion from
1997-2007 - Patty Thompson- 4/7/08 |
| |
• New
North American Birds - Expert Predictions and Actuality - Colin
Campbell 4/3/08 |
| |
• The
New Delaware Breeding Bird Atlas - Anthony Gonson - 3/20/08 |
| |
•
North
American Lesser Black-backed Gull Research Project - Sally Conyne
- 3/6/08
Click
Here for the presentation
Click
Here for Sally's notes |
| |
•
Presentation
of the 2007 DVOC Conservation Award - 2/21/08 |
| |
•
Sexing
Bald Eagles - Debbie Beer
- 2/7/08 |
| |
•
Black-capped
vs. Carolina Chickadee: How Can You Really Tell? - Frank
Windfelder 1/17/08 |
| |
•Paleo-ornithological
Study - Steve Kacir - 1/3/07
|
| 2007 |
|
| |
•Separating
Hooded and Altamira Orioles in the Rio Grande Valley - Adrian
Binns (no web version available) - 12/20/07 |
| |
• Hummingbird
Hotspot in Central
Pennsylvania
- Edie Parnum - 11/15/07
Video #1
(32mb)
Video
#2 (6mb) |
| |
• Bird
Names - The Apostrophes - Bert
Filemyr - 11/1/07 |
| |
• Newcomers
to the Delaware Valley - Adrian
Binns - 10/18/07 |
| |
•
Fecal Sacs- Adrian Binns
- 10/4/07 |
| |
• What’s
the Logic of Eclipse Plumage
in Ducks? - Art McMorris
- 9/20/07 |
| |
• Odd Chickadee
Behavior? Or just plain Normal?
- Adrian Binns - 7/5/07 (no web version available) |
| |
• Bird Names:
A Linguistic Perspective - Raja Stephenson - 5/3/07 (no web version
available) |
| |
• Eavesdropping
on Alarm Calls - Art McMorris
- 4/19/07 |
| |
• Poisonous
Birds - Steve Kacir - 3/15/07 |
| |
• Recent Pelagic
Results - Paul Guris - 3/1/07
(no web version available) |
| |
• New
Pelagic Boundaries - Paul Guris
- 2/15/07 |
| |
• The
Isle of May - Colin Campbell
- 2/1/07 |
| |
• Report on
Progress on the East Park Reservoir Project - Tim Schaeffer, Executive
Director of PA Audubon - 1/18/06 (no web version available) |
| |
• Sorting
Out White-crowned Sparrow Subspecies - Jane
Henderson - 1/4/07 |
| 2006 |
|
| |
• Northern
Saw-whet Owl Migration, 2006 - Deborah
Danila - 12/21/06 |
| |
• Vagrants
in Britain - Robert Hynson
- 11/2/06 |
| |
•
The Little Egret/Western Reef Heron complex - Nicholas
Haass - 10/18/06 |
| |
• Taxonomy
of Sooty and Dusky Grouse - Matt
Sharp - 9/21/06 |
| |
• Latin
Names - Scott Fraser - 8/7/06 |
| |
• Birding
With an iPod - Bert Filemyr
- 8/3/06 |
| |
• Summer
Reading Club - Connie Goldman
- 8/3/06 |
| |
• Migration
at Palmyra - A Quiz - Frank
Windfelder - 7/6/06 |
| |
• Breeding
Bird Atlas Block Busting - Bob Mercer - 6/1/06 |
| |
• World
Series of Birding Report - 5/18/06 (no web version available) |
| |
• Lost World
- Garden of Eden - Frank Windfelder
- 5/4/06 (no web version available) |
| |
•
Anting and Antibiotics- Steve
Kacir - 4/20/06 |
| |
• Total
Ticks: What, Why, and Who - Bert
Filemyr - 3/16/06 |
| |
•
Forensic Identification - Connie
Goldman - 3/16/06 |
| |
• Banding Studies
with MAPS Protocol - Doris McGovern
- 3/2/06 (no web version available) |
| |
• ID Tips -
Adrian Binns - 2/16/06 |
| |
|
American
Coot / Eurasian Coot |
| |
|
American
Oystercatcher / Eurasian Oystercatcher |
| |
|
Black-necked
Stilt / Black-winged Stilt |
| |
|
Chimney
Swift / Common Swift |
| |
|
Common
Merganser / Goosander |
| |
|
Great
Blue Heron / Grey Heron |
| |
|
Lesser
Yellowlegs / Wood Sandpiper |
| |
|
Snowy
Egret / Little Egret |
| |
|
Wilson's
Snipe / Common Snipe |
| |
• Might Rival Species Share One Nest? - Chris
Walters - 2/2/06 |
| |
•
“The Birds” - Scott
Fraser - 2/2/06 |
| |
•
Information for finding a Mountain Trogon - Rick
Mellon - 1/19/06 |
| |
•
Bird Color Quiz - Bert Filemyr
- 1/19/06 |
| 2005 |
|
| |
•
2005 Peregrine Falcon Nesting Season in PA - Art
McMorris - 1/5/05 |
| |
• Gynandromorphy
- Adrian Binns - 12/15/05 (no
web version available) |
| |
• A Forensic
Approach to Ivory-billed Woodpecker Searching - Carl Perry - 12/1/05
(Readers may be interested in "Ivory -billed Woodpecker (Campephius
principalis): Hope, and the Interfaces of Science, Conservation, and
Politics" by Jerome A. Jackson in January 2006 AOU's "The
Auk" (Click
Here for this article), and in the response to that article, "Clarifications
about current research on the status of Ivory-billed Woodpecker (Campephilus
principalis) in Arkansas" by John W. Fizpatrick et al. in
the April 2006 issue of "The Auk" [Auk 123(2): 587-593,
2006]. Click Here
for this article. |
| |
•
The Snow Geese Complex - Colin
Campbell - 11/3/05 |
| |
• Vagrant Western Hummingbirds
- Matt Sharp - 10/20/05 (no
web version available) |
| |
•
DVOC Birders Quiz - Colin
Campbell - 10/6/05 |
| |
• Juvenile Shorebird
ID - Chuck Hetzel - 9/22/05
(no web version available) |
| |
•
Recent and Impending Taxonomic Changes - Nikolas
Haass (9/1/05) |
| |
•
The American and European Magpie Puzzle
- Nikolas Haass - 7/14/05 |
| |
•
Peregrine Falcon Head Patterns - Connie
Goldman - 5/5/05 |
| |
•
PA Peregrine Falcon Webcams - Art
McMorris - 4/7/05 |
| |
• Palmyra Bird
Census 2005 - Frank Windfelder
- 4/7/05 (no web version available) |
| |
•
Dark-backed Gulls - Nikolas Haass
- 3/17/05 |
| |
•
Owl Feet and Hunting Methods - Art
McMorris - 3/3/05 |
| |
•
2004 Saw-whet Owl Banding Season- 2/17/05 - Deborah
Danila |
| |
• 2/3/05 Delaware
River Oil Spill presented by Erika Scarborough (John Heinz National
Wildlife Refuge) and Eileen Gilbert (Tri-State Bird Rescue and Research)
(no web version available) |
| |
•
Boreal Owl Identification - 2/3/05 - Connie
Goldman |
| |
•
Northern / Loggerhead Shrike ID - 1/20/05 - Adrian
Binns |
| |
•
Newly-discovered Bird Species - 1/6/05- Anita
Guris |
| 2004 |
|
| |
•
Canada Goose/Cackling Goose - 12/2/04 - Matt
Sharp |
| |
• From the Archives
-11/4/04 - Lynn Jackson (no
web version available) |
| |
•
Laughing Gulls / Franklin's Gulls - 10/21/04 (Adrian
Binns) |
| |
•
Hypopigmentation - 10/7/04 (Nikolas
Haass) |
| |
•
Preparation of Bird Study Skins - 9/23/04 - Connie
Goldman |
| |
•
Identification of Red-footed Falcon and Amur Falcon - 9/2/04 (Nickolas
Haass) |
| |
•
Greater Spotted Woodpecker Behavior - (Bonus) - (Nikolas
Haass) |
| |
• Why is it
named that? A guide to puzzling bird names - 5/20/04 (Art
McMorris) (no web version available) |
| |
• Porphyrin
Pigments in Bird Feathers - 5/6/04 (Art
McMorris) (no web version available) |
| |
•
Endemic Birds of the North America - 4/15/04 (Bert
Filemyr) |
| |
•
White-throated Sparrow: Biology of Color Morphs- 4/1/04 (Art
McMorris) |
| |
•
East Park Reservoir and Diving Duck Depths - 3/18/04 (Doris
McGovern) (This is an abridged version of the presentation made
at the DVOC meeting) |
| |
•
ID pointers and traps: Greater White-fronted, Pink-footed and Bean
Goose - 3/4/04 (Nikolas Haass)
(This is an abridged version of the presentation made at the DVOC
meeting) |
| |
•
What to Listen for in Learned Calls - 2/19/04 (Don Jones) |
| |
•
Bohemian Waxwings vs. Cedar Waxwings (Bonus) (Martin
Selzer) |
| |
• Juvenile Jaegers
- 2/5/04 (Paul Guris) (no web
version available) |
| |
•
Recent AOU Name Changes - 1/22/04 (Adrian
Binns) |
| |
•
Ring-necked Ducks - 1/8/04 (Adrian
Binns) |
| 2003 |
|
| |
•
Iridescence in Feathers - 12/18/03 (Colin
Campbell) |
| |
•
Shades of Gray - Gulls - 12/5/03 (Bert
Filemyr) |
| |
•
Chimney Swifts - 11/20/03 (Jane
Henderson) |
| |
• White-winged"
Juncos - 10/16/03 - Rick Mellon
(No web version available) |
| |
•
Indian Vulture Crisis - 9/03 (Adrian
Binns) |
| |
•
Fresh Breeding Plumage Dowitchers - 9/03 (Frank
Windfelder) |
| |
• Bluebirds
- 4/3/03 - Anita Guris (No web
version available) |
| |
• Saw-whet Owl
Calls - 3/20/03 (Mike Fritz)
(No web version available) |
| |
•
Spotted Sandpiper vs Common Sandpiper - 3/03 (Chris
Walters) |
| |
•
Common Teal vs. Green-winged Teal - 2/20/03 (Adrian
Binns) |
| |
•
American Avocet - 2/6/03 (Adrian
Binns) |
| |
•
Large Alcids - 01/16/03 (Paul
Guris) |
| |
|
ORNITHOLOGICAL STUDIES
Ornithological Moments