The Cornell Lab of Ornithology is a world leader in the study, appreciation, and conservation of birds. Our hallmarks are scientific excellence and technological innovation to advance the understanding of nature and to engage people of all ages in learning about birds and protecting the planet. Visit the Cornell Lab of Ornithology in the 220-acre Sapsucker Woods Sanctuary. Hike wooded trails, learn bird sounds, and watch movies about birds and nature in the observatory. For info, beautiful photographs and a calendar of events, visit their website and Facebook Page! Hours - 10am-4pm, Daily. Closed Thanksgiving Day and during the holiday week between Christmas Day and New Year's Day. The Cornell Lab of Ornithology is on the Ithaca Discovery Trail.