Welcome to the Delaware Ornithological Society

Dedicated to enjoying, protecting and studying Delaware's bird life

Update on meetings and field trips:  If the pandemic continues to stay in check, we plan to resume in person membership meetings at Ashland Nature Center on 20 October 2021.  We will be gradually resuming our field trips and hope to offer a full slate by the fall.

Save the date - DOS Picnic:  If the pandemic continues to stay in check, we plan to have the DOS picnic on the afternoon of Saturday 18 September 2021.  Details coming soon.

Upcoming Events

Help with Family Friendly Birding Locations

Do you have a favorite birding spot in Delaware, Pennsylvania, or Maryland?  The DOS Youth Birding Committee wants to know!  We are looking to organize information about the best places for families to go birding in the region, but we can't do it without your help.  Fill out the survey by clicking the button and  tell us all about where you like to go birding and the features that make it great!

What we do

Field Trips

We run field trips throughout  the year to Delaware's birding hotspots.

Monthly Meetings

We hold monthly meetings with wide ranging topics.  


We work to conserve critical bird habitats in partneship with other organizations and the state.  

Youth Birding

Our youth birding group and co-sponsorship of the Frontiers in Ornithology Symposium provide activities for school age birders.  

Citizen Science

From Hawk Watches to Heron Surveys, we run a number of projects studying Delaware's birds.


Our signature fundraising event has raised money to purchase 2000 acres of critical bird habitat.  

A word from our president

“DOS welcomes anyone with an interest in Delaware's birds, from beginner to expert.  There are many activities that you can participate in and many volunteer opportunities.  Whether it is birding, conservation, science or education, there is something for everyone.  Consider joining today.”
Michael Moore, DOS President


Subscribe to the DOS Free Newsletter

All members receive our email newsletter, but anyone can subscribe who wants to lean more about what DOS is doing

DOS needs your support

DOS offers a wide range of activities and has an ambitious and multifaceted mission.  Please help with your support.

Members receive the monthly newsletter, annual journal and the Birdline rare bird alert.

Become a Member Today

Click below to see the different member categories.  Join today online or by standard mail.

Already a Member?

Don't miss out on anything and renew today online or by standard mail.

Consider a Donation

DOS needs your support to carry out its mission.  Please consider a donation.