- This event has passed.
New birds are showing up every day at GRNA. Join us on Saturday, April 7 at 9 am to look and listen for these spring arrivals. We will learn to ID birds by sight and sound and log observations online using eBird. This 1.5 hour program is $5 per participant. More information at grassriver.org. Grass River Natural Area is located at 6500 Alden Highway, Bellaire MI