Welcome to the MOS Convention website

We may have some convention participants cancel before the Sept. 1 registration cutoff date. If you wish to add your name to the waitlist, please click here and follow the instructions. If someone cancels, we may be able to register you.

Please note: MOS has capped 2026 convention registration at 200 participants. This is due to space limitations for afternoon and evening events at the DoubleTree by Hilton, our convention hotel. This will not be an issue for the 79th Annual MOS Convention, which will be hosted May 21-23, 2027 at the Wisp Resort in Western Maryland.

Black Skimmer and Great Blue Heron photos courtesy of Dr. Frode Jacobsen. Salisbury is the Eastern Shore’s first Bird City. Salisbury’s signature bird is the Great Blue Heron.

The 78th Annual MOS Convention will be hosted Sept. 25-27 in Salisbury, MD

Field Trip sign-ups will open on August 1.

Poster summaries are due on August 15.

This website will be updated as information becomes available.

If you have any questions about the convention, or if you are interested in leading or co-leading a field trip or serving as a convention volunteer, please email MOS Convention Chair Jim Rapp at jim.rapp@mdbirds.org.

Save the Date for the 79th Annual MOS Convention

The 79th Annual MOS Convention will be hosted May 21-23, 2027 at the Wisp Resort in Western Maryland.


The Maryland Ornithological Society welcomes all and strives to achieve an atmosphere of diversity and inclusivity. MOS wants its Convention, like its other events, to be a place where all those interested in birds feel at home, have opportunities to grow as birders, and can participate in and enjoy a welcoming and civil birding community.


The Maryland Ornithological Society (MOS) is a nonprofit, statewide organization of people who are interested in birds and nature. It promotes the study and enjoyment of birds, knowledge about the natural world around us, and fosters their appreciation and conservation. To that end, MOS conducts an annual convention where both members and non-members can meet, socialize, discuss conservation and natural resource topics, and enjoy guided field trips in various regions of Maryland.

Banner Image: Brown-headed Nuthatch. Photo courtesy of Dr. Frode Jacobsen.