Learn about great blue heron natural history. We’ll walk 2.5 miles on a flat trail to view great blue heron nesting sites at Riverfront Regional Park. This is a great opportunity to glimpse a new generation of North America's largest heron in this rookery along the Russian River. Casual birders are welcome! Bring binoculars, and a spotting scope if you have one or use ours. Be prepared for cool weather after sunset.