Sept. 26-28: MOS Convention in Frederick, MD

The Black-crowned Night-Heron is the signature bird of the City of Frederick. Photo courtesy of Dr. Frode Jacobsen.

Registration is open!

Join the Maryland Ornithological Society (MOS) for their 77th annual convention in historic Frederick, MD, during Sept. 26 – 28, 2025. Field trips will be hosted in the region on Friday, Saturday and Sunday. Evening events will be hosted on Friday at Monocacy Village Park and Saturday at the Arc at Market Street.

For more information and to register, please visit www.MOSconvention.org.

Grasshopper Sparrow, Black-crowned Night-Heron and American Kestrel. Photos courtesy of Dr. Frode Jacobsen.