A new exhibit, “Taking Shape: Abstraction from the Arab World, 1950s–1980s,” at the McMullen Museum of Art. “Twenty-one in Truro,” at the Cape Cod Museum of Art featuring 21 female artists that have come together annually for over 20 years to paint and support one another. The work of painter, author and bird watcher, David Allen Sibley at the Museum of American Bird Art, and Texas artist David Mc