Observe Great Blue Herons and their chicks through special spotting scopes. Hear the facts from interns and volunteers who explain the birds' behavior during this seasonal spectacle. Free. 10 am to 1 pm., May 5, 12
, & 19.
Stow Lake, follow sign at Boathouse to observation site in Golden Gate Park. Information: email@example.com
., 387-9160, or visit sfnature.org.