Modern Day Bird Watching Seminar April 20, 2024 Time: 10am-12pm Where: Ralston Classroom & Outside Presented by: : Bruce McClenahan B.A. Zoology - Humboldt State University, Docent - Calaveras Big Trees State Park, Conservation Chair - Central Sierra Audubon 2024 CBTA Seminar Flyer Seminars are free and open to the public. There is a $10 [...]