On April 11, Headwaters Center for Lifelong Learning diverts from its in-person programming to show a PBS documentary on “Magic of the Snowy Owl,” with footage of the unique creatures as they breed and attempt to raise their young in the harsh Arctic environment. HCLL programs are from 1 to 2:30 p.m. Tuesdays at the Armory Arts & Events Center, 203 Park Ave. So. The sessions are free and handicapped accessible. Refreshments and treats provided.