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The Birder’s Guide to Maryland & DC is a project of the Maryland Ornithological Society.
MOS Mailing Address:
Maryland Ornithological Society, Inc.
4915 Greenspring Avenue
Baltimore, MD 21209
Donate to Support the Birder’s Guide
We’ve made it easier than ever to donate to the Birder’s Guide to Maryland and DC. Just click on the Donate button and you will be redirected to the donation page on the Maryland Ornithological Society’s website.
December 4 - December 5
December 9 @ 7:30 pm - 9:00 pm
December 11 @ 7:30 am - 12:00 pm
December 11 @ 8:00 am - 11:30 am
December 11 @ 8:00 am - 11:00 am
December 11 @ 8:00 am - 9:30 am