Play the Field

Mass Audubon Wellfleet Bay Wildlife Sanctuary, at 291 Route 6, is offering “Field School: Birding Past and Present,” a three-session course on ornithology. The times: Friday, September 18th and Saturday, September 19th, from 3 to 8 p.m, and Sunday, September 20th, from 8 a.m. to 4 p.m. The cost: $465. You can register at massaudubon.org, under “Programs, Classes & Activities.”