Yellow fever. New York–based children’s entertainer Danna Banana, named “Best Party Entertainer” by New York Magazine, performs at King County Libraries this month. Check him out at the Des Moines Library on May 3, 10:30 a.m.; Federal Way 320th on May 5, 7 p.m.; Shoreline Library on May 11, 11 a.m.; Mercer Island Library on May 12, 10:30 a.m.; Crossroads Bellevue on May 14, 5 p.m.; and Woodinville Library on May 15, 2 p.m. Free. Ages 10 and younger.
Frequent flyers. Northwest Trek’s annual “Migratory Madness” weekend celebrates migratory songbirds, which fly mind-bogglingly long distances from their wintering grounds in Central and South America to their breeding grounds in the Pacific Northwest. Watch bird training demos by Trek staff, play migration hopscotch to learn about challenges faced by migratory birds on their journey, try on bird beaks and costumes, and help out with a bird-banding survey. Saturday, May 1 and Sunday, May 2, 9:30 a.m.–5 p.m. (activity times may vary). Free with admission. All ages. Northwest Trek, 11610 Trek Drive E., Eatonville. 360-832-6117.
Kids Rock! Seattle Art Museum’s latest exhibit, Kurt, is an exhibition of Kurt Cobain–inspired work by artists from around the world. On Saturday, May 15, head over for Family Day — take a kid-friendly tour, try your hand at arts and crafts, get your faces painted, and stick around for a concert by Caspar Babypants (do we still need to add that he’s also the lead singer of The Presidents of the United States of America?) at 11 a.m., and The Harmonica Pocket, (with special guests dancer Maureen Freehill and musician Jon Ryser), at noon. Free, but admission is required to tour the galleries. All ages. 10 a.m.–3 p.m. Seattle Art Museum, 1300 First Ave., Seattle.