More than three years after a wildfire devastated Big Basin Redwoods State Park in the Santa Cruz Mountains, the massive redwood trees in California’s oldest state park continue to recover with surprising speed. But some wildlife species, particularly salmon and steelhead trout in the park’s streams, and some types of birds, are still struggling and could take many years to bounce back. That was the conclusion of researchers who spoke at a recent scientific symposium exploring how Big Basin is faring in the wake of the 2020 CZU Lightning Complex Fire. The best news: The park’s famed old-growth redwoods, some of which tower more than 250 feet and date back more than 1,500 years, are nearly all green again, showing significant amounts of new growth after the wildfire’s flames charred their bark black and for a while gave them a doomed appearance.