Notes about your surroundings.

Telegraph Canyon Trip--The Sea & Sage chapter of the National Audubon Society is hosting a field trip Saturday to Telegraph Canyon in Chino Hills State Park, on the Orange-Los Angeles county border above Yorba Linda.

The canyon has a variety of habitats--from enormous oak, sycamore and walnut trees to grasslands and from river banks to dry canyon bottoms--that make it an excellent bird-sighting area.

There is a chance the group might spot a golden eagle as well as some of the other more common birds found there, including brown towhees, house wrens, spotted doves, house sparrows, European starlings, American crows, and hooded and northern orioles.

The group is asked to meet at the park’s entrance off Rim Crest Drive in Yorba Linda at 7:30 a.m. For more information, call trip leader Colin Campbell at (714) 528-0857.

Marsh Volunteers--The Friends of San Joaquin Freshwater Marsh is seeking volunteers to help clean up the marsh Monday. Those who would like to donate their time and labor to do necessary maintenance work to keep the marsh at its natural best are asked to meet at UC Irvine’s North Campus Arboretum at 2 p.m. The work will continue through sunset. Call (714) 856-5181 for more information.

Bay Tours--The Friends of Upper Newport Bay and the California Department of Fish and Game will again co-sponsor guided nature tours of the Back Bay area beginning at 9 a.m. Saturday. The tours are free and will set off every 15 to 20 minutes until 10:15 a.m. Those wanting to take a tour are asked to meet at Back Bay and Eastbluff drives in Newport Beach. For more information, call (714) 646-8009.