Notes about your surroundings

Wetlands Tours--Guided public tours of the Bolsa Chica wetlands will be held Saturday morning.

The tours, sponsored by Amigos de Bolsa Chica, will depart from the wetlands’ ecological reserve every 20 minutes beginning at 9 a.m. The last tour will depart at 10:30 a.m.

Bolsa Chica is one of the best bird-watching sites in the county. Birds likely to be seen on the tours include egrets, loons, herons, grebes and other waterfowl.

Those who would like to take the tour are asked to meet at the ecological reserve on Pacific Coast Highway about half a mile south of Warner Avenue, across from Bolsa Chica State Beach.

Bay Tours--A guided tour of the Upper Newport Bay Ecological Reserve will be offered Saturday, beginning at 9 a.m.

The tour is free and lasts about 2 1/2 hours.

Those who would like to participate are asked to meet at Shellmaker Island off Backbay Drive in Newport Beach. For more information, call (714) 640-6746.

Trestles Field Trips--The Sea & Sage chapter of the National Audubon Society will hold field trips to the Trestles area south of San Clemente on June 5 and June 9.

Birds likely to be seen include yellow-breasted chats, pied-billed grebes, swallows, swifts, woodpeckers, goldfinches, gulls and hawks, chapter officials say.

The group will meet in the beach parking lot at El Camino Real and Cristianitos Road, off Interstate 5 near San Onofre State Beach.

Both trips will begin at 8 a.m.

For more information, call the chapter office at (714) 261-7963.