



Anna's hummingbird is the only species that stays in San Francisco all year — and the male's 60 mph courtship dive is one of nature's most spectacular stunts. Head to the SF Botanical Garden at dawn this weekend to catch one.
A weekly urban-naturalist field guide locked to San Francisco. Each episode profiles one wild creature that actually lives within 5 miles of the viewer — Pier 39 sea otters, Glen Canyon coyotes, Salesforce Tower red-tailed hawks.
このコンテンツについて、さらに観点や背景を補足しましょう。