Join to support our mission and be part of the fun

Benefits of Membership

No other organization knows Delaware and its birds like the Delaware Ornithological Society.  Whether you are a beginner, expert or professional, you will find a warm welcome here.

Monthly Newsletter

Field trips

Conservation Initiatives

Annual journal, The Delaware Ornithologist

Monthly Meetings

Youth Birding activities

Birdline Delaware, weekly email rare bird alert

Volunteer Opportunities

Hawk watches, Falcon Cam, Christmas Bird Counts, Bird-a-thon and more

Membership Categories

One Year Memberships


$ 12.50 /yr


$ 25 /yr


$ 37.50 /yr


$50 /yr

One Year Memberships with Extras

Black-necked Stilt

$ 100 /yr

Includes a DOS Hat


$ 200 /yr

Includes a DOS Binocular Strap and Hat

Life Membership

Life Membership

$ 500 one time

Lifetime membership - Never renew again!

Includes a DOS Hat

Includes a DOS Binocular Strap