* one of 12 native birds sings every hour * real nature photos by Jean-Claude Roché * Light sensor: at night the birds go to sleep in their nest * ultra-flat quartz movement, no ticking * ∅ 13.4in * Batteries: 2 x AAA not included Design meets nature: modern, cool, striking. The KooKoo UltraFlat focuses on understated, cool design. The striking silhouettes of native songbirds on the dial and the hands in the form of stylized branches give the modern wall clock a special and purist look. At just 0.7in, the UltraFlat is the flattest birdcall clock we have ever made.