March 3-6, the San Diego Audubon Society hosts its 15th annual San Diego Bird Festival and Audubon California Assembly at Mission Bay. The event is for beginning and expert birders and includes guided field trips, pelagic birding trips, workshops and environmental and conservation presentations, among other activities. Registration for the four-day festival is $20, although fees for workshops and field trips vary. Parking at Marina Village is free. For more information or to register, call (858) 273-7800, visit www.sandiegoaudubon.org or e-mail [email protected]. SATURDAY, March 5, 7 p.m., Christ Lutheran Church hosts Paula Mowbray and special guests Gregory Ellis, the Mt. Olive Bell Choir, clarinetist Gareth Guest, the Christ Lutheran Chancel Choir and the Christ Luheran Bell Choir. The event is a freewill offering. It takes place at the church, 4761 Cass St. For more information, call (858) 483-2300, or visit www.christpb.org.