On Saturday, September 1 from 8 to 10 a.m. go on a morning walk to look and listen for songbirds, shorebirds, and maybe even some raptors with experienced birder Nate Marchessault at Mass Audubon’s Allens Pond Wildlife Sanctuary. Birders will walk along the Beach Loop Trail at 1280 Horseneck Rd. in Dartmouth at this event, co-hosted by the Buzzards Bay Coalition and the New Bedford Art Museum. Register for free at savebuzzardsbay.org or call (508) 999-6363, ext. 219, or email bayadventures@savebuzzardsbay.org with questions.