To report a sighting that may be appropriate for posting on the DVOC Listserv contact Bert Filemyr, or Paul Guris. See information below for guidelines.

Gregg Gorton – Chairperson
María Andreína Pacheco
Sean O’Donnell
Nate Rice
Jenny Uehling

Ornithological Moments

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

2014

12/06

Art McMorris

Pennsylvania’s Peregrine Falcons: 2014 Season Summary

2013

12/05

Art McMorris

Pennsylvania’s Peregrine Falcons: 2013 Season Summary

2012

12/20	Art McMorris	Falcons and Parrots: Almost Songbirds?
04/19	Mike Fritz	2011 Billings Big Year
02/16	Art McMorris	Snowy Owls: Age, Sex and Plumage

2011

12/15	Rick Mellon	Christmas Bird Count Fun
05/05	Steve Kacir	When a Butcherbird Isn’t a Shrike: An Introduction to the Cracticinae of Australia Click Here for the song of the Pied Butcherbird singing at dawn.
04/21	Hart Rufe	Revisiting ‘The Bare Truth About Birding Martha’s Vineyard’
04/07	Frank Windfelder	A DVOC Quiz
03/17	Gregg Gorton	Looking for Ted Parker
03/03	Edie Parnum	Your Backyard Is For Birds
02/17	Barbara Granger	Owls Create New Lawn Decor
02/03	Colin Campbell	What will be the next new bird in your state?
01/20	Phil Witmer	A Conservation Conversation

2010

12/16	Rick Mellon	All time high counts for Xmas Count birds in Area
12/02	Don Jones	Vocal Differences between the Recent Splits Announced by AOU
11/04	Debbie Beer	The Secret Lives of Saw-Whets
10/21	John Tramontano	Wing Beat and Flight Patterns Useful in Avian ID
10/07	Frank Windfelder	Ring-billed Gull Plumages
09/09	Frank Windfelder	ID of Wigeon
04/15	Steve Kacir	Aberrant White Winged Gull
03/18	Chris Walters	Nesting Strategies of the Little Guys with the Big Guys
03/04	Bert Filemyr	In the Field: Bonaparte’s Gulls and Black-headed Gulls
02/04	Frank Windfelder	Eye-arcs and Orbital Rings
02/04	Frank Windfelder	Identification of Scaup

2009

12/17	Connie Goldman	Ornithology Primer: Some Correlates of Wing Structure and Migration
12/03	Howard Eskin	A Fly Fisherman’s Observations About Some Diving Ducks
10/15	Sue Killeen	Mystery Hawk at my Bird Bath
10/01	Frank Windfelder	Misidentified Birds
05/07	Frank Windfelder	Tree Swallow Attack
04/16	Phil Witmer	Glass: Reducing Bird Strikes
04/02	Steve Kacir	Diving Bird Quiz
03/19	Chris Walters	Flight Identification: Wilson’s Snipe vs American Woodcock
02/19	Art McMorris	2008 Peregrine Falcon nesting season in Pennsylvania
02/05	Adrian Binns	Distribution of Eastern Screech Owl Morphs
01/22	Adrian Binns	Ice Build up on Birds: An Observation
01/08	Frank Windfelder	Eider ID

2008

10/06	Steve Kacir	Giving Up The Heavens
10/03	Debbie Beer	Refuges by the Numbers
09/18	Art McMorris	Recent AOU Checklist Changes
06/05		World Series/May Run reports
05/15	Bert Filemyr	DVOC World Series team report
05/01	Sarah Warner	Swamp Sparrows – A Mystery Unfolds
04/07	Patty Thompson	Changes in Spring Arrival Dates for Three Bird Species in Lower Merion from 1997-2007
04/03	Colin Campbell	New North American Birds – Expert Predictions and Actuality
03/20	Anthony Gonson	The New Delaware Breeding Bird Atlas
03/06	Sally Conyne	North American Lesser Black-backed Gull Research ProjectClick Here for Sally’s notes
02/21		Presentation of the 2007 DVOC Conservation Award
02/07	Debbie Beer	Sexing Bald Eagles
01/17	Frank Windfelder	Black-capped vs. Carolina Chickadee: How Can You Really Tell?
01/03	Steve Kacir	Paleo-ornithological Study

2007

12/20	Adrian Binns	Separating Hooded and Altamira Orioles in the Rio Grande Valley
11/15	Edie Parnum	Hummingbird Hotspot in Central PennsylvaniaVideo 1(32 MB) Video 2(6MB)
11/01	Bert Filemyr	Bird Names – The Apostrophes
10/18	Adrian Binns	Newcomers to the Delaware Valley
10/04	Adrian Binns	Fecal Sacs
09/20	Art McMorris	What’s the Logic of Eclipse Plumage in Ducks?
07/05	Adrian Binns	Odd Chickadee Behavior? Or just plain Normal?
05/03	Raja Stephenson	Bird Names: A Linguistic Perspective
04/19	Art McMorris	Eavesdropping on Alarm Calls
03/15	Steve Kacir	Poisonous Birds
03/01	Paul Guris	Recent Pelagic Results
02/15	Paul Guris	New Pelagic Boundaries
02/01	Colin Campbell	The Isle of May
01/18	Tim Schaeffer, Executive Director of PA Audubon	Report on Progress on the East Park Reservoir Project
01/04	Jane Henderson	Sorting Out White-crowned Sparrow Subspecies

Click here for the “What’s This?” feature!

Developed by Matt Sharp and Andy Bernick, this ongoing project provides identification information for some challenging species.
Click here to go to the pages.

(Updated 11/13/07)
This database of ID articles was developed and is maintained by Frank Windfelder.
Click here to view this pdf file.

A set of gull photographs demonstrating the variability of the common gull species found in the Delaware Valley. Also included is documentation of rare species and unusual individuals. Created and maintained by Matt Sharp.
Click here to go the site

Click here for Harry Armistead‘s report on searching for Ivory-bills in Arkansas

The Ewell Sale Stewart Library, at the Academy, is open to the public Tuesday-Friday, from 1 to 4:30 PM or 9 AM-5 PM when accompanied by a staff member. Register (free) at the 19th Street Desk at the Academy. You can contact the Library office at 215-299-1040