Celebrating 125 years! 1890 - 2015
The Delaware Valley Ornithological Club (DVOC) is the organization for birders and bird enthusiasts in the Delaware Valley region.
All who have an interest in birds are invited to attend functions of the DVOC. Click Here for membership information.

Contact Us

Save These Dates
Saturday June 20 - DVOC Picnic
Saturday August 22 - DVOC Silent Auction
Saturday October 10 - 125th Anniversary Gala

Next Meeting:
Thursday May 7, 2015 7:30 pm
Held at the Academy of Natural Sciences, Philadelphia, PA
Directions to the Meeting
Directions to the informal pre-meeting dinner and the informal post-meeting gathering

Jason Weckstein - An Ornithological Expedition To The Most Endangered Amazonian Area Of Endemism: The Belem Center Of Endemism

Amazonia is the world’s largest, most intact, and most diverse tropical forest ecosystem on the planet and is often considered a uniform carpet of biodiversity. However, early biodiversity researchers noted that Amazonia isn’t a single unit of biodiversity, but that huge Amazonian rivers form barriers to species, with at least eight Amazonia areas of endemism harboring unique faunas. Although some of these areas of endemism are largely intact, others are highly endangered by habitat destruction. In particular, southeastern Amazonia, is now marked by a huge arc of deforestation. In this talk, Jason will introduce his project aimed at studying these biodiversity and endemism patterns in birds and their associated parasites, and will take us on an expedition to the largest remaining track of lowland forest in the endangered Belém area of eastern Amazonia, an area endemism seldom visited by birders.

DVOC member Jason Weckstein is an associate professor in Drexel University's Biodiversity, Earth, and Environmental Sciences department and associate curator in the department of Ornithology at the Academy of Natural Sciences. Jason obtained his BS degree in Natural Resources from the University of Michigan in 1993, his MS in Zoology from the University of Minnesota and his PhD from Louisiana State University in 2003. After obtaining his PhD Jason was a postdoctoral fellow at the Illinois Natural History Survey at the University of Illinois Urbana-Champaign and at the Field Museum of Natural History in Chicago, where he stayed on as a staff scientist until moving to his current position at the Academy of Natural Sciences and Drexel University. Jason specializes in biodiversity research on birds and their parasites and has over 17 years of experience working in natural history museums and has conducted research expeditions in the United States, Canada, South Africa, Ghana, Malawi, Nicaragua, and Brazil.


Join in the Philadelphia Bird Race!
May 9-17, 2015

A new birding event here in southeastern PA, covering Bucks, Chester, Delaware, Montgomery and Philadelphia provides a variety of way for birders to get involved in fun birding outings, from 1-hour walks called "Big Green Hours" to full-on "Big Day" runs right on your home turf. There are a bunch of different ways to participate. So register today or donate now to support the causes the bird race is raising funds for. See the "Support" page for more info on that, and come to the Finish Line on May 17th at Bartram's Garden to hear how it all went. Thanks to our sponsors See Life Paulagics and Tobin's Feed & Seed!

Philadelphia Bird Race and BirdPhilly are
major initiatives of the DVOC

Next Field Trips:

For breeders and spring migrants. Expected: warblers, including Kentucky, Hooded and Louisiana Waterthrush; thrushes (possibly including Swainson's), vireos, flycatchers and many others. Meet at 6:30 AM at the Ridley Creek bridge on Gradyville Road (near Newtown Square, PA). We will bird until 11:00 or noon, depending on when the birds give out.
This DVOC trip is free to members and non-members.
Leaders: Win Shafer, Alan Crawford

Early May in the Wissahickon is excellent for early arriving warblers like Louisiana waterthrush, as well wood thrush, and courting wood ducks. We will meet at Valley Green and walk along Forbidden Drive, stopping at bridges to search for waterthrush.
This DVOC/Philadelphia Parks and Recreation trip is free to members and non-members.
Meeting location: Valley Green parking lot. Valley Green Road. 19128
Meeting time: 7:00 am
Contact: Tony Croasdale

After a break for lunch, a birding by ear workshop will be held at the Wissahickon Environmental Center (Tree House).
This DVOC/Philadelphia Parks and Recreation trip is free to members and non-members.
Meeting location: 300 Northwestern Ave. 19118
Meeting time: 1:00 pm
Contact: Tony Croasdale

We will explore West Park in Fairmount Park to look for spring migrants and breeding birds like veery and wild turkey.
This DVOC/Philadelphia Parks and Recreation trip is free to members and non-members.
Meeting location: 100 N Horticultural Drive.
Meeting Time: 9:00 am
Contact: Tony Croasdale

Sandra Keller is changing the trip this year to hit several hotspots in the county to show people the area. Details to follow at the beginning of May.
This DVOC trip is free to members and non-members.
Leader: Sandra Keller

New in 2015 - BirdPhilly
BirdPhilly is a series of birding walks and events in Philadelphia parks for the 2015 calendar year. For further information go to the BirdPhilly website.

See also the Philly Bird Race website



Full 2015 Field Trip Schedule
















(4/26/15) Navin Sasikumar Personal Page (new member)
(4/26/15) John Friedman Personal Page (new member)
(4/26/15) Dennis Miranda Personal Page (new member)
(4/26/15) Liz Billings Personal Page (new member)
(4/26/15) Tova Hauser Personal Page (new member)
(4/26/15) Gabriel Hauser Personal Page (new member)
(4/26/15) Bill Bolger Personal Page (new member)
(4/21/15) Minutes of the April 16, 2015 Meeting
(4/20/15) Minutes of the April 2, 2015 Meeting
(4/19/15) West Laurel Hill Cemetery Field Trip Report
(4/10/15) 2015 Philadelphia Mid-Winter Bird Census Report
(4/3/15) 2014 Billings Award Winner
(4/3/15) Minutes of the March 19th Meeting
(4/3/15) Minutes of the February 19th Meeting
(3/15/15) Salem County Field Trip Report
(2/28/15) Constitution and By-Laws
(2/28/15) Carolyn Friedman Personal Page (new member)
(2/23/15) 75th Bombay Hook Christmas Count Summary
(2/23/15) 75th Bombay Hook Christmas Count Species List



From the DVOC Constitution/By-Laws:
•The mission of this club is the advancement and diffusion of ornithological knowledge.
•The members of this club shall be persons who are interested in ornithology considered in its widest sense

Each year the DVOC raises money for our Conservation Fund. Most of the funds are raised as part of the DVOC's participation in NJ Audubon's World Series of Birding but other donations are certainly accepted. All funds collected in a calendar year are distributed to one or more organizations recommended by the Conservation Committee and approved by Council. For further information on donating -

You can quickly and easily make a donation using PayPal. Click the "Donate" button below to do this. If you have a Paypal Account please log in. If you do not, use the "Don't have a PayPal account?" section in the lower left hand corner of the page that appears after you click the "Donate" button below.

The DVOC is a 501(c)(3) organization.
Contributions to DVOC are tax-deductible.


Delaware Valley Ornithological Club
c/o Academy of Natural Sciences
1900 Benjamin Franklin Parkway
Philadelphia, PA 19103

This page last updated Sunday, April 26, 2015 9:13 PM
All questions, comments, suggestions or additional material should be directed to

© DVOC 2014
All rights reserved. Reproduction in whole or in part,
in any form or medium, without express written permission is prohibited.

(10/28/14) Robin Mattison Personal Page (new member)







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