First produced in 1999 with over 8 million sold, our Limited Edition 20th Anniversary 13-inch Singing Bird Clock includes twelve beautiful birds and corresponding sounds from some of the most recognized Birds in North America – one at the top of each hour. Framed in Green Matte, this clock features images and high end authentic bird recordings. Detailed packaging provides bird habits and habitat information. Light sensor deactivates songs when room is dark. Birds featured include American Robin, American Goldfinch, Pileated Woodpecker, Black-capped Chickadee, Blue Jay, Common Loon, Baltimore Oriole, Purple Martin, Eastern Screech-Owl, Northern Cardinal, White-breasted Nuthatch and Bald Eagle.n for this product here...